基于Pawlak属性重要度的属性约简算法源码代码.doc

大概一年前写代码实现了这个算法，今天有人问我要，在这里贴出来好了。具体算法思路我也忘了，但是代码应该还算清晰。只需要事先了解下STL。

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/* 测试数据
21/10 X1 X2 X3 X4 X5 X6 X7 X8 X9 y
U1 c 6 y E m h h a m m
U2 c 6 n E m m h ma m m
U3 c 6 n E m h h ma m m
U4 c 4 y E m h h ma l h
U5 c 6 n E m m m ma m m
U6 c 6 n B m m m a he lo
U7 c 6 n E m m h ma he lo
U8 s 4 n B sm h lo ma l h
U9 c 4 n B sm h lo ma m m
U10 c 4 n B sm h m a m m
U11 s 4 n E sm h lo ma l h
U12 s 4 n E m m m ma m h
U13 c 4 n B m m m ma m m
U14 s 4 y E sm h h ma m h
U15 s 4 n B sm m lo ma m h
U16 c 4 y E m m h ma m m
U17 c 6 n E m m h a m m
U18 c 4 n E m m h a m m
U19 s 4 n E sm h m ma m h
U20 c 4 n E sm h m ma m h
U21 c 4 n B sm h m ma m m
*/
#include
#include
#include
#include
include
#include
using namespace std;
#define DATA_FILE_NAME "../data.txt"
#define DEF_ATTR_CNT 10
#define DEF_OBJ_CNT 21
int g_attr_cnt = 0;
int g_obj_cnt = 0;
class object;
vector g_attr_set;
vector g_mask;
vector *> g_obj_set;
vector g_core_set;
vector g_b_set;
vector * > g_ind_c_set;
vector * > g_ind_b_set;
void clr_mask(const string &attr)
{
int i = 0;
for (i = 0; i < g_attr_cnt; i++)
{
if (attr = g_attr_set[i])
g_mask[i] = false;
else
g_mask[i] = true;
}
}
void set_mask()
{
int i = 0;
for (i = 0; i < g_attr_cnt; i++)
{
g_mask[i] = true;
}
}
void set_mask_set(vector &str_set)
{
int i = 0, j = 0;
bool found = false;
for (i = 0; i < g_attr_cnt; i++)
{
found = false;
for (j = 0; j < str_set.size(); j++)
{
if (g_attr_set[i] == str_set[j])
{
found = true;
break;
}
}
if (found)
g_mask[i] = true;
else
g_mask[i] = false;
}
}
class object {
public:
vector attr_val;
string obj_name;

public
object(const string &name) : obj_name(name)
{
attr_val.reserve(DEF_ATTR_CNT);
}
~object()
{ }
bool operator == (const object &r_obj) const
{
bool res = true;
int i = 0;
for (i = 0; i < g_attr_cnt i++)
{
if (g_mask[i])
res &= (attr_val[i] == r_obj.attr_val[i]);
if (false == res)
break;
}
return res;
}
};
void read_data()
{
string strTmp;
ifstream data_in(DATA_FILE_NAME,ifstream::in);
int i = 0, j = 0;
object *p_obj = NULL;
g_attr_set.reserve(DEF_ATTR_CNT);
g_mask.reserve(DEF_ATTR_CNT);
g_obj_set.reserve(DEF_OBJ_CNT);
// read object count, and attr count
data_in >> strTmp;
g_obj_cnt = atoi(strTmp.substr(0, strTmp.find("/")).c_str());
g_attr_cnt = atoi(strTmp.substr(strTmp.find("/") + 1, strTmp.length()).c_str());
for (i = 0; i < g_attr_cnt; i++)
{
data_in >> strTmp;
g_attr_set.push_back(strTmp);
g_mask.push_back(true);
}
for (i = 0; i < g_obj_cnt; i++)
{
data_in >> strTmp;
p_obj = new object(strTmp);
for (j = 0; j < g_attr_cnt; j++)
{
data_in >> strTmp;
p_obj->attr_val.push_back(strTmp);
}
// add object
g_obj_set.push_back(p_obj);
}
// close file
data_in.close();
}
void print_data()
{
int i = 0, j = 0;
cout << g_obj_cnt << "/" << g_attr_cnt << " ";
for (i = 0; i < g_attr_cnt; i++)
{
cout << setw(4) << setiosflags(ios::left) << g_attr_set[i];
if (i < g_attr_cnt - 1)
cout << " ";
}
cout << endl;
cout << "-------------------------------------------------------------------------" << endl;

for (i = 0; i < g_obj_cnt; i+)
{
cout << setw(3) << g_obj_set[i]->obj_name << " ";
for (j = 0; j < g_attr_cnt; j++)
{
cout << setw(3) << setiosflags(ios::left) << g_obj_set[i]->attr_val[j];
if (j < g_attr_cnt - 1)
cout << setw(3) << " ";
}
cout << endl;
}
}
void clear_data()
{
int i = 0;
for (i = 0; i < g_obj_cnt; i++)
{
delete g_obj_set[i];
g_obj_set[i] = NULL;
}
}
void clear_ind_set(vector * > &ind_set)
{
vector *tmp = NULL;
while (!ind_set.empty())
{
tmp = ind_set.back();
delete tmp;
tmp = NULL;
ind_set.pop_back();
}
}
void app_exit()
{
clear_ind_set(g_ind_c_set);
clear_ind21、set(g_ind_b_set);
}
void add_obj_to_ind_set(vector * > &ind_set, object *p_obj)
{
vector *vec_tmp = NULL;
int i = 0;
bool found = false;
for (i = 0; i < ind_set.size(); i++)
{
if ((*p_obj) == *((*ind_set[i])[22、0]))
{
found = true;
ind_set[i]->push_back(p_obj);
break;
}
}
if (!found)
{
vec_tmp = new vector;
vec_tmp->push_back(p_obj);
ind_set.push_back(vec_tmp);
23、 }
}
bool obj_set_equal(vector &l_obj_set, vector &r_obj_set)
{
if (l_obj_set.size() != r_obj_set.size())
return false;
bool found = false;
int i = 0, j = 0;
for (i = 0; i < l_obj_set.size(); i++)
{
fou24、nd = false;
for (j = 0; j < r_obj_set.size(); j++)
{
if (l_obj_set[i] == r_obj_set[j])
{
found = true;
break;
}
}
if (!found)
return false;
25、}
return true;
}
bool ind_set_equal(vector * > &l_ind_set, vector * > &r_ind_set)
{
if (l_ind_set.size() != r_ind_set.size())
return false;
bool found = false;
int i = 0, j = 0;
for (i = 0; i < l_ind_se26、t.size(); i++)
{
found = false;
for (j = 0; j < r_ind_set.size(); j++)
{
if (obj_set_equal(*l_ind_set[i], *r_ind_set[j]))
{
found = true;
break;
}
}
27、 if (!found)
return false;
}
return true;
}
void core()
{
// get IND(C)
int i = 0;
vector * > ind_set_tmp;
set_mask();
for (i = 0; i < g_obj_cnt; i++)
{
add_obj_to_ind_set(g_i28、nd_c_set, g_obj_set[i]);
}
int j = 0;
for (i = 0; i < g_attr_cnt; i++)
{
clear_ind_set(ind_set_tmp);
clr_mask(g_attr_set[i]);
// get IND(C-{xi})
for (j = 0; j < g_obj_cnt; j++)
{
add_obj_to_in29、d_set(ind_set_tmp, g_obj_set[j]);
}
if (!ind_set_equal(g_ind_c_set, ind_set_tmp))
g_core_set.push_back(g_attr_set[i]);
}
clear_ind_set(ind_set_tmp);
// already get core
cout << "--------------------------------------------------30、" << endl;
cout << "core:\n{";
for (i = 0; i < g_core_set.size(); i++)
{
//copy to B
g_b_set.push_back(g_core_set[i]);
cout << g_core_set[i];
if (i < g_core_set.size() - 1)
cout << ", "; 31、
}
cout << "}\n";
}
bool attr_set_equal(vector &l_attr_set, vector &r_attr_set)
{
if (l_attr_set.size() != r_attr_set.size())
return false;
int i = 0, j = 0;
bool found = false;
for (i = 0; i < l_attr_set.size(); i+32、)
{
found = false;
for (j = 0; j < r_attr_set.size(); j++)
{
if (l_attr_set[i] == r_attr_set[j])
{
found = true;
break;
}
}
if (!found)
33、 return false;
}
return true;
}
void attr_set_sub(vector &l_attr_set, vector &r_attr_set, vector &res_set)
{
int i = 0, j = 0;
bool found = false;
for (i = 0; i < l_attr_set.size(); i++)
{
found =34、 false;
for (j = 0; j < r_attr_set.size(); j++)
{
if (l_attr_set[i] == r_attr_set[j])
{
found = true;
break;
}
}
if (!found)
res_set.push_back(l_att35、r_set[i]);
}
}
void get_ind_set(vector &mask_set, vector * > &res_ind_set)
{
int i = 0;
// get IND set
set_mask_set(mask_set);
for (i = 0; i < g_obj_cnt; i++)
{
add_obj_to_ind_set(res_ind_set, g_obj_set[36、i]);
}
}
void attr_set_copy(vector &dst_attr_set, vector &src_attr_set)
{
int i = 0;
dst_attr_set.clear();
for (i = 0; i < src_attr_set.size(); i++)
{
dst_attr_set.push_back(src_attr_set[i]);
}
}
void red37、uction()
{
vector b_set_tmp;
vector c_sub_b;
vector max_sig;
vector * > ind_set_tmp;
int max = 0, max_idx = 0, max_cnt = 0;
int i = 0, j = 0;
// get IND(B)
get_ind_set(g_b_set, g_ind_b_set);
38、
while (!ind_set_equal(g_ind_c_set, g_ind_b_set))
{
if (attr_set_equal(g_b_set, g_attr_set))
break;
c_sub_b.clear();
attr_set_sub(g_attr_set, g_b_set, c_sub_b);
max_sig.clear();
for (i = 0; i < c_sub_b.size(); i+39、)
{
attr_set_copy(b_set_tmp, g_b_set);
b_set_tmp.push_back(c_sub_b[i]);
clear_ind_set(ind_set_tmp);
get_ind_set(b_set_tmp, ind_set_tmp);
max_sig.push_back(ind_set_tmp.size() - g_ind_b_set.size());
40、 }
// now, process max_sig
max = max_sig[0];
max_idx = 0;
max_cnt = 0;

for (j = 1; j < max_sig.size(); j++)
{
if (max_sig[j] > max)
{
max = max_sig[j];
41、 max_idx = j;
max_cnt = 1;
}
else if (max == max_sig[j])
{
max_cnt++;
}
}
g_b_set.push_back(c_sub_b[max_idx]);
if (attr_set_equal(g_b_set, g_attr_set))42、
break;
// get IND(B)
clear_ind_set(g_ind_b_set);
get_ind_set(g_b_set, g_ind_b_set);
}
clear_ind_set(ind_set_tmp);
// get reduction now
cout << "-----------------------------------------------------------------------43、" << endl;
cout << "reduction set:\n{";
for (i = 0; i < g_b_set.size(); i++)
{
cout << g_b_set[i];
if (i < g_b_set.size() - 1)
cout << ", ";
}
cout << "}\n";
}
void print_red_data()
{
int i = 0, j =44、 0;
set_mask_set(g_b_set);
cout << "-------------------------------------------------------------------------" << endl;
cout << " ";
for (i = 0; i < g_attr_cnt; i++)
{
if (g_mask[i])
{
cout << setw(4) << setiosflags(45、ios::left) << g_attr_set[i];
if (i < g_attr_cnt - 1)
cout << " ";
}
}
cout << endl;
cout << "-------------------------------------------------------------------------" << endl;

for (i = 0; i < g_obj_cnt; i++) 46、
{
cout << setw(3) << g_obj_set[i]->obj_name << " ";
for (j = 0; j < g_attr_cnt; j++)
{
if (g_mask[j])
{
cout << setw(3) << setiosflags(ios::left) << g_obj_set[i]->attr_val[j];
if (j < 47、g_attr_cnt - 1)
cout << setw(3) << " ";
}
}
cout << endl;
}
}
int main()
{
read_data();
print_data();
core();
reduction();
print_red_data();
clear_data();
app_48、exit();
}
/* 测试数据
21/10 X1 X2 X3 X4 X5 X6 X7 X8 X9 y
U1 c 6 y E m h h a m m
U2 c 6 n E m m h ma m m
U3 c 6 n E m h h ma m m
U4 c 4 y E m h h ma 49、 l h
U5 c 6 n E m m m ma m m
U6 c 6 n B m m m a he lo
U7 c 6 n E m m h ma he lo
U8 s 4 n B sm h lo ma l h
U9 c 4 n B sm h lo ma m m
U10 50、c 4 n B sm h m a m m
U11 s 4 n E sm h lo ma l h
U12 s 4 n E m m m ma m h
U13 c 4 n B m m m ma m m
U14 s 4 y E sm h h ma m h
U15 s 4 n B

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wx.config({
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var shareData = {
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function BaseShare(title, desc, imgUrl, link) {
if (link=="")
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timestamp: '1748921543', // 必填，生成签名的时间戳
nonceStr: '9BF31C7FF062936A96D3C8BD1F8F2FF3', // 必填，生成签名的随机串
signature: '6051e9b1ee2748fffba1a02822b01503dc2d1d83',// 必填，签名，见附录1
jsApiList: ['onMenuShareAppMessage', 'onMenuShareTimeline', 'updateAppMessageShareData', 'updateTimelineShareData', 'hideMenuItems'] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2
//openTagList: ["wx-open-launch-weapp"]//H5打开小程序
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wx.ready(function () { //需在用户可能点击分享按钮前就先调用
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$("img.lazys").lazyload({
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effect: "fadeIn"
});

set(g_ind_b_set);
}
void add_obj_to_ind_set(vector * > &ind_set, object *p_obj)
{
vector *vec_tmp = NULL;
int i = 0;
bool found = false;
for (i = 0; i < ind_set.size(); i++)
{
if ((*p_obj) == *((*ind_set[i])[22、0]))
{
found = true;
ind_set[i]->push_back(p_obj);
break;
}
}
if (!found)
{
vec_tmp = new vector;
vec_tmp->push_back(p_obj);
ind_set.push_back(vec_tmp);
23、 }
}
bool obj_set_equal(vector &l_obj_set, vector &r_obj_set)
{
if (l_obj_set.size() != r_obj_set.size())
return false;
bool found = false;
int i = 0, j = 0;
for (i = 0; i < l_obj_set.size(); i++)
{
fou24、nd = false;
for (j = 0; j < r_obj_set.size(); j++)
{
if (l_obj_set[i] == r_obj_set[j])
{
found = true;
break;
}
}
if (!found)
return false;
25、}
return true;
}
bool ind_set_equal(vector * > &l_ind_set, vector * > &r_ind_set)
{
if (l_ind_set.size() != r_ind_set.size())
return false;
bool found = false;
int i = 0, j = 0;
for (i = 0; i < l_ind_se26、t.size(); i++)
{
found = false;
for (j = 0; j < r_ind_set.size(); j++)
{
if (obj_set_equal(*l_ind_set[i], *r_ind_set[j]))
{
found = true;
break;
}
}
27、 if (!found)
return false;
}
return true;
}
void core()
{
// get IND(C)
int i = 0;
vector * > ind_set_tmp;
set_mask();
for (i = 0; i < g_obj_cnt; i++)
{
add_obj_to_ind_set(g_i28、nd_c_set, g_obj_set[i]);
}
int j = 0;
for (i = 0; i < g_attr_cnt; i++)
{
clear_ind_set(ind_set_tmp);
clr_mask(g_attr_set[i]);
// get IND(C-{xi})
for (j = 0; j < g_obj_cnt; j++)
{
add_obj_to_in29、d_set(ind_set_tmp, g_obj_set[j]);
}
if (!ind_set_equal(g_ind_c_set, ind_set_tmp))
g_core_set.push_back(g_attr_set[i]);
}
clear_ind_set(ind_set_tmp);
// already get core
cout << "--------------------------------------------------30、" << endl;
cout << "core:\n{";
for (i = 0; i < g_core_set.size(); i++)
{
//copy to B
g_b_set.push_back(g_core_set[i]);
cout << g_core_set[i];
if (i < g_core_set.size() - 1)
cout << ", "; 31、
}
cout << "}\n";
}
bool attr_set_equal(vector &l_attr_set, vector &r_attr_set)
{
if (l_attr_set.size() != r_attr_set.size())
return false;
int i = 0, j = 0;
bool found = false;
for (i = 0; i < l_attr_set.size(); i+32、)
{
found = false;
for (j = 0; j < r_attr_set.size(); j++)
{
if (l_attr_set[i] == r_attr_set[j])
{
found = true;
break;
}
}
if (!found)
33、 return false;
}
return true;
}
void attr_set_sub(vector &l_attr_set, vector &r_attr_set, vector &res_set)
{
int i = 0, j = 0;
bool found = false;
for (i = 0; i < l_attr_set.size(); i++)
{
found =34、 false;
for (j = 0; j < r_attr_set.size(); j++)
{
if (l_attr_set[i] == r_attr_set[j])
{
found = true;
break;
}
}
if (!found)
res_set.push_back(l_att35、r_set[i]);
}
}
void get_ind_set(vector &mask_set, vector * > &res_ind_set)
{
int i = 0;
// get IND set
set_mask_set(mask_set);
for (i = 0; i < g_obj_cnt; i++)
{
add_obj_to_ind_set(res_ind_set, g_obj_set[36、i]);
}
}
void attr_set_copy(vector &dst_attr_set, vector &src_attr_set)
{
int i = 0;
dst_attr_set.clear();
for (i = 0; i < src_attr_set.size(); i++)
{
dst_attr_set.push_back(src_attr_set[i]);
}
}
void red37、uction()
{
vector b_set_tmp;
vector c_sub_b;
vector max_sig;
vector * > ind_set_tmp;
int max = 0, max_idx = 0, max_cnt = 0;
int i = 0, j = 0;
// get IND(B)
get_ind_set(g_b_set, g_ind_b_set);
38、
while (!ind_set_equal(g_ind_c_set, g_ind_b_set))
{
if (attr_set_equal(g_b_set, g_attr_set))
break;
c_sub_b.clear();
attr_set_sub(g_attr_set, g_b_set, c_sub_b);
max_sig.clear();
for (i = 0; i < c_sub_b.size(); i+39、)
{
attr_set_copy(b_set_tmp, g_b_set);
b_set_tmp.push_back(c_sub_b[i]);
clear_ind_set(ind_set_tmp);
get_ind_set(b_set_tmp, ind_set_tmp);
max_sig.push_back(ind_set_tmp.size() - g_ind_b_set.size());
40、 }
// now, process max_sig
max = max_sig[0];
max_idx = 0;
max_cnt = 0;

for (j = 1; j < max_sig.size(); j++)
{
if (max_sig[j] > max)
{
max = max_sig[j];
41、 max_idx = j;
max_cnt = 1;
}
else if (max == max_sig[j])
{
max_cnt++;
}
}
g_b_set.push_back(c_sub_b[max_idx]);
if (attr_set_equal(g_b_set, g_attr_set))42、
break;
// get IND(B)
clear_ind_set(g_ind_b_set);
get_ind_set(g_b_set, g_ind_b_set);
}
clear_ind_set(ind_set_tmp);
// get reduction now
cout << "-----------------------------------------------------------------------43、" << endl;
cout << "reduction set:\n{";
for (i = 0; i < g_b_set.size(); i++)
{
cout << g_b_set[i];
if (i < g_b_set.size() - 1)
cout << ", ";
}
cout << "}\n";
}
void print_red_data()
{
int i = 0, j =44、 0;
set_mask_set(g_b_set);
cout << "-------------------------------------------------------------------------" << endl;
cout << " ";
for (i = 0; i < g_attr_cnt; i++)
{
if (g_mask[i])
{
cout << setw(4) << setiosflags(45、ios::left) << g_attr_set[i];
if (i < g_attr_cnt - 1)
cout << " ";
}
}
cout << endl;
cout << "-------------------------------------------------------------------------" << endl;

for (i = 0; i < g_obj_cnt; i++) 46、
{
cout << setw(3) << g_obj_set[i]->obj_name << " ";
for (j = 0; j < g_attr_cnt; j++)
{
if (g_mask[j])
{
cout << setw(3) << setiosflags(ios::left) << g_obj_set[i]->attr_val[j];
if (j < 47、g_attr_cnt - 1)
cout << setw(3) << " ";
}
}
cout << endl;
}
}
int main()
{
read_data();
print_data();
core();
reduction();
print_red_data();
clear_data();
app_48、exit();
}
/* 测试数据
21/10 X1 X2 X3 X4 X5 X6 X7 X8 X9 y
U1 c 6 y E m h h a m m
U2 c 6 n E m m h ma m m
U3 c 6 n E m h h ma m m
U4 c 4 y E m h h ma 49、 l h
U5 c 6 n E m m m ma m m
U6 c 6 n B m m m a he lo
U7 c 6 n E m m h ma he lo
U8 s 4 n B sm h lo ma l h
U9 c 4 n B sm h lo ma m m
U10 50、c 4 n B sm h m a m m
U11 s 4 n E sm h lo ma l h
U12 s 4 n E m m m ma m h
U13 c 4 n B m m m ma m m
U14 s 4 y E sm h h ma m h
U15 s 4 n B

var _hmt = _hmt || [];
(function() {
var hm = document.createElement("script");
hm.src = "https://hm.baidu.com/hm.js?6e2a21bc68316db308b5fdc9a0d11f2e";
var s = document.getElementsByTagName("script")[0];
s.parentNode.insertBefore(hm, s);
})();

关于我们      便捷服务       自信AI       AI导航        抽奖活动©2010-2025 宁波自信网络信息技术有限公司  版权所有客服电话：4009-655-100  投诉/维权电话：[phone]浙公网安备33021202000488号   浙ICP备2021020529号-1  |  浙B2-20240490  关注我们 ：             

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function stopPropagation(e) {
var ev = e || window.event;
if (ev.stopPropagation) {
ev.stopPropagation();
}
else if (window.event) {
window.event.cancelBubble = true;//兼容IE
}
}
$("#navmore").click(function (e) {
$("#navcontent").show();
$("#navlogo").show();
stopPropagation(e);
var navcontentwidth = $("#navcontent").width();
$('#navcontent').css({ 'right': '-' + navcontentwidth + 'px' });
$("#navcontent").show().animate({ "right": 0 }, 300);
});
$(document).bind('click', function () {
var navcontentwidth = $("#navcontent").width();
$("#navcontent").animate({ 'right': '-' + navcontentwidth + 'px' }, 300, function () { $("#navcontent").hide(); });
$("#navlogo").fadeOut(300);
});
$("#navcontent").click(function (e) {
stopPropagation(e);
});
$("#navclose").click(function (e) {
var navcontentwidth = $("#navcontent").width();
$("#navcontent").animate({ 'right': '-' + navcontentwidth + 'px' }, 300, function () { $("#navcontent").hide(); });
$("#navlogo").fadeOut(300);
});

function BaseShare(title, desc, imgUrl) {
var link = "https://m.zixin.com.cn/docdown/2487564.html";
if (wx) {
wx.config({
debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
appId: 'wx49d3b0cb6fb382c4', // 必填，公众号的唯一标识
timestamp: '1748921543', // 必填，生成签名的时间戳
nonceStr: '9BF31C7FF062936A96D3C8BD1F8F2FF3', // 必填，生成签名的随机串
signature: '6051e9b1ee2748fffba1a02822b01503dc2d1d83',// 必填，签名，见附录1
jsApiList: ['onMenuShareAppMessage', 'onMenuShareTimeline', 'updateAppMessageShareData', 'updateTimelineShareData', 'hideMenuItems'] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2
//openTagList: ["wx-open-launch-weapp"]//H5打开小程序
});
wx.ready(function () { //需在用户可能点击分享按钮前就先调用
wx.hideMenuItems({// 要隐藏的菜单项，只能隐藏“传播类”和“保护类”按钮，所有menu项见附录3
menuList: ['menuItem:share:qq', 'menuItem:favorite', 'menuItem:share:QZone', 'menuItem:share:email', 'menuItem:originPage', 'menuItem:readMode', 'menuItem:delete', 'menuItem:editTag', 'menuItem:share:facebook', 'menuItem:share:weiboApp', 'menuItem:share:brand']
});
var shareData = {
title: title, // 分享标题
desc: desc,//这里请特别注意是要去除html
link: link, // 分享链接，该链接域名或路径必须与当前页面对应的公众号JS安全域名一致
imgUrl: imgUrl, // 分享图标
};
wx.updateAppMessageShareData(shareData);//1.4 分享到朋友
wx.updateTimelineShareData(shareData);//1.4分享到朋友圈
});
}
}
function BaseShare(title, desc, imgUrl, link) {
if (link=="")
link = "https://m.zixin.com.cn/docdown/2487564.html";
if (wx) {
wx.config({
debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
appId: 'wx49d3b0cb6fb382c4', // 必填，公众号的唯一标识
timestamp: '1748921543', // 必填，生成签名的时间戳
nonceStr: '9BF31C7FF062936A96D3C8BD1F8F2FF3', // 必填，生成签名的随机串
signature: '6051e9b1ee2748fffba1a02822b01503dc2d1d83',// 必填，签名，见附录1
jsApiList: ['onMenuShareAppMessage', 'onMenuShareTimeline', 'updateAppMessageShareData', 'updateTimelineShareData', 'hideMenuItems'] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2
//openTagList: ["wx-open-launch-weapp"]//H5打开小程序
});
wx.ready(function () { //需在用户可能点击分享按钮前就先调用
wx.hideMenuItems({// 要隐藏的菜单项，只能隐藏“传播类”和“保护类”按钮，所有menu项见附录3
menuList: ['menuItem:share:qq', 'menuItem:favorite', 'menuItem:share:QZone', 'menuItem:share:email', 'menuItem:originPage', 'menuItem:readMode', 'menuItem:delete', 'menuItem:editTag', 'menuItem:share:facebook', 'menuItem:share:weiboApp', 'menuItem:share:brand']
});
var shareData = {
title: title, // 分享标题
desc: desc,//这里请特别注意是要去除html
link: link, // 分享链接，该链接域名或路径必须与当前页面对应的公众号JS安全域名一致
imgUrl: imgUrl, // 分享图标
};
wx.updateAppMessageShareData(shareData);//1.4 分享到朋友
wx.updateTimelineShareData(shareData);//1.4分享到朋友圈
});
}
}

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$(document).ready(function () {
var arr = $(".headercontent");
for (var i = 0; i < arr.length; i++) {
(function (index) {
var url = "https://m.zixin.com.cn/header.aspx";
$.get(url + "?tp=0&t=" + (new Date()).valueOf(), function (d) {
try {
arr.eq(index).empty().html(d);
} catch (e) { }
try {
arr.html(d);
} catch (e) { }
});
})(i);
}
});

$("img.lazys").lazyload({
threshold: 200,
effect: "fadeIn"
});

0]))
{
found = true;
ind_set[i]->push_back(p_obj);
break;
}
}
if (!found)
{
vec_tmp = new vector;
vec_tmp->push_back(p_obj);
ind_set.push_back(vec_tmp);
23、 }
}
bool obj_set_equal(vector &l_obj_set, vector &r_obj_set)
{
if (l_obj_set.size() != r_obj_set.size())
return false;
bool found = false;
int i = 0, j = 0;
for (i = 0; i < l_obj_set.size(); i++)
{
fou24、nd = false;
for (j = 0; j < r_obj_set.size(); j++)
{
if (l_obj_set[i] == r_obj_set[j])
{
found = true;
break;
}
}
if (!found)
return false;
25、}
return true;
}
bool ind_set_equal(vector * > &l_ind_set, vector * > &r_ind_set)
{
if (l_ind_set.size() != r_ind_set.size())
return false;
bool found = false;
int i = 0, j = 0;
for (i = 0; i < l_ind_se26、t.size(); i++)
{
found = false;
for (j = 0; j < r_ind_set.size(); j++)
{
if (obj_set_equal(*l_ind_set[i], *r_ind_set[j]))
{
found = true;
break;
}
}
27、 if (!found)
return false;
}
return true;
}
void core()
{
// get IND(C)
int i = 0;
vector * > ind_set_tmp;
set_mask();
for (i = 0; i < g_obj_cnt; i++)
{
add_obj_to_ind_set(g_i28、nd_c_set, g_obj_set[i]);
}
int j = 0;
for (i = 0; i < g_attr_cnt; i++)
{
clear_ind_set(ind_set_tmp);
clr_mask(g_attr_set[i]);
// get IND(C-{xi})
for (j = 0; j < g_obj_cnt; j++)
{
add_obj_to_in29、d_set(ind_set_tmp, g_obj_set[j]);
}
if (!ind_set_equal(g_ind_c_set, ind_set_tmp))
g_core_set.push_back(g_attr_set[i]);
}
clear_ind_set(ind_set_tmp);
// already get core
cout << "--------------------------------------------------30、" << endl;
cout << "core:\n{";
for (i = 0; i < g_core_set.size(); i++)
{
//copy to B
g_b_set.push_back(g_core_set[i]);
cout << g_core_set[i];
if (i < g_core_set.size() - 1)
cout << ", "; 31、
}
cout << "}\n";
}
bool attr_set_equal(vector &l_attr_set, vector &r_attr_set)
{
if (l_attr_set.size() != r_attr_set.size())
return false;
int i = 0, j = 0;
bool found = false;
for (i = 0; i < l_attr_set.size(); i+32、)
{
found = false;
for (j = 0; j < r_attr_set.size(); j++)
{
if (l_attr_set[i] == r_attr_set[j])
{
found = true;
break;
}
}
if (!found)
33、 return false;
}
return true;
}
void attr_set_sub(vector &l_attr_set, vector &r_attr_set, vector &res_set)
{
int i = 0, j = 0;
bool found = false;
for (i = 0; i < l_attr_set.size(); i++)
{
found =34、 false;
for (j = 0; j < r_attr_set.size(); j++)
{
if (l_attr_set[i] == r_attr_set[j])
{
found = true;
break;
}
}
if (!found)
res_set.push_back(l_att35、r_set[i]);
}
}
void get_ind_set(vector &mask_set, vector * > &res_ind_set)
{
int i = 0;
// get IND set
set_mask_set(mask_set);
for (i = 0; i < g_obj_cnt; i++)
{
add_obj_to_ind_set(res_ind_set, g_obj_set[36、i]);
}
}
void attr_set_copy(vector &dst_attr_set, vector &src_attr_set)
{
int i = 0;
dst_attr_set.clear();
for (i = 0; i < src_attr_set.size(); i++)
{
dst_attr_set.push_back(src_attr_set[i]);
}
}
void red37、uction()
{
vector b_set_tmp;
vector c_sub_b;
vector max_sig;
vector * > ind_set_tmp;
int max = 0, max_idx = 0, max_cnt = 0;
int i = 0, j = 0;
// get IND(B)
get_ind_set(g_b_set, g_ind_b_set);
38、
while (!ind_set_equal(g_ind_c_set, g_ind_b_set))
{
if (attr_set_equal(g_b_set, g_attr_set))
break;
c_sub_b.clear();
attr_set_sub(g_attr_set, g_b_set, c_sub_b);
max_sig.clear();
for (i = 0; i < c_sub_b.size(); i+39、)
{
attr_set_copy(b_set_tmp, g_b_set);
b_set_tmp.push_back(c_sub_b[i]);
clear_ind_set(ind_set_tmp);
get_ind_set(b_set_tmp, ind_set_tmp);
max_sig.push_back(ind_set_tmp.size() - g_ind_b_set.size());
40、 }
// now, process max_sig
max = max_sig[0];
max_idx = 0;
max_cnt = 0;

for (j = 1; j < max_sig.size(); j++)
{
if (max_sig[j] > max)
{
max = max_sig[j];
41、 max_idx = j;
max_cnt = 1;
}
else if (max == max_sig[j])
{
max_cnt++;
}
}
g_b_set.push_back(c_sub_b[max_idx]);
if (attr_set_equal(g_b_set, g_attr_set))42、
break;
// get IND(B)
clear_ind_set(g_ind_b_set);
get_ind_set(g_b_set, g_ind_b_set);
}
clear_ind_set(ind_set_tmp);
// get reduction now
cout << "-----------------------------------------------------------------------43、" << endl;
cout << "reduction set:\n{";
for (i = 0; i < g_b_set.size(); i++)
{
cout << g_b_set[i];
if (i < g_b_set.size() - 1)
cout << ", ";
}
cout << "}\n";
}
void print_red_data()
{
int i = 0, j =44、 0;
set_mask_set(g_b_set);
cout << "-------------------------------------------------------------------------" << endl;
cout << " ";
for (i = 0; i < g_attr_cnt; i++)
{
if (g_mask[i])
{
cout << setw(4) << setiosflags(45、ios::left) << g_attr_set[i];
if (i < g_attr_cnt - 1)
cout << " ";
}
}
cout << endl;
cout << "-------------------------------------------------------------------------" << endl;

for (i = 0; i < g_obj_cnt; i++) 46、
{
cout << setw(3) << g_obj_set[i]->obj_name << " ";
for (j = 0; j < g_attr_cnt; j++)
{
if (g_mask[j])
{
cout << setw(3) << setiosflags(ios::left) << g_obj_set[i]->attr_val[j];
if (j < 47、g_attr_cnt - 1)
cout << setw(3) << " ";
}
}
cout << endl;
}
}
int main()
{
read_data();
print_data();
core();
reduction();
print_red_data();
clear_data();
app_48、exit();
}
/* 测试数据
21/10 X1 X2 X3 X4 X5 X6 X7 X8 X9 y
U1 c 6 y E m h h a m m
U2 c 6 n E m m h ma m m
U3 c 6 n E m h h ma m m
U4 c 4 y E m h h ma 49、 l h
U5 c 6 n E m m m ma m m
U6 c 6 n B m m m a he lo
U7 c 6 n E m m h ma he lo
U8 s 4 n B sm h lo ma l h
U9 c 4 n B sm h lo ma m m
U10 50、c 4 n B sm h m a m m
U11 s 4 n E sm h lo ma l h
U12 s 4 n E m m m ma m h
U13 c 4 n B m m m ma m m
U14 s 4 y E sm h h ma m h
U15 s 4 n B

var _hmt = _hmt || [];
(function() {
var hm = document.createElement("script");
hm.src = "https://hm.baidu.com/hm.js?6e2a21bc68316db308b5fdc9a0d11f2e";
var s = document.getElementsByTagName("script")[0];
s.parentNode.insertBefore(hm, s);
})();

关于我们      便捷服务       自信AI       AI导航        抽奖活动©2010-2025 宁波自信网络信息技术有限公司  版权所有客服电话：4009-655-100  投诉/维权电话：[phone]浙公网安备33021202000488号   浙ICP备2021020529号-1  |  浙B2-20240490  关注我们 ：             

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function stopPropagation(e) {
var ev = e || window.event;
if (ev.stopPropagation) {
ev.stopPropagation();
}
else if (window.event) {
window.event.cancelBubble = true;//兼容IE
}
}
$("#navmore").click(function (e) {
$("#navcontent").show();
$("#navlogo").show();
stopPropagation(e);
var navcontentwidth = $("#navcontent").width();
$('#navcontent').css({ 'right': '-' + navcontentwidth + 'px' });
$("#navcontent").show().animate({ "right": 0 }, 300);
});
$(document).bind('click', function () {
var navcontentwidth = $("#navcontent").width();
$("#navcontent").animate({ 'right': '-' + navcontentwidth + 'px' }, 300, function () { $("#navcontent").hide(); });
$("#navlogo").fadeOut(300);
});
$("#navcontent").click(function (e) {
stopPropagation(e);
});
$("#navclose").click(function (e) {
var navcontentwidth = $("#navcontent").width();
$("#navcontent").animate({ 'right': '-' + navcontentwidth + 'px' }, 300, function () { $("#navcontent").hide(); });
$("#navlogo").fadeOut(300);
});

function BaseShare(title, desc, imgUrl) {
var link = "https://m.zixin.com.cn/docdown/2487564.html";
if (wx) {
wx.config({
debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
appId: 'wx49d3b0cb6fb382c4', // 必填，公众号的唯一标识
timestamp: '1748921543', // 必填，生成签名的时间戳
nonceStr: '9BF31C7FF062936A96D3C8BD1F8F2FF3', // 必填，生成签名的随机串
signature: '6051e9b1ee2748fffba1a02822b01503dc2d1d83',// 必填，签名，见附录1
jsApiList: ['onMenuShareAppMessage', 'onMenuShareTimeline', 'updateAppMessageShareData', 'updateTimelineShareData', 'hideMenuItems'] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2
//openTagList: ["wx-open-launch-weapp"]//H5打开小程序
});
wx.ready(function () { //需在用户可能点击分享按钮前就先调用
wx.hideMenuItems({// 要隐藏的菜单项，只能隐藏“传播类”和“保护类”按钮，所有menu项见附录3
menuList: ['menuItem:share:qq', 'menuItem:favorite', 'menuItem:share:QZone', 'menuItem:share:email', 'menuItem:originPage', 'menuItem:readMode', 'menuItem:delete', 'menuItem:editTag', 'menuItem:share:facebook', 'menuItem:share:weiboApp', 'menuItem:share:brand']
});
var shareData = {
title: title, // 分享标题
desc: desc,//这里请特别注意是要去除html
link: link, // 分享链接，该链接域名或路径必须与当前页面对应的公众号JS安全域名一致
imgUrl: imgUrl, // 分享图标
};
wx.updateAppMessageShareData(shareData);//1.4 分享到朋友
wx.updateTimelineShareData(shareData);//1.4分享到朋友圈
});
}
}
function BaseShare(title, desc, imgUrl, link) {
if (link=="")
link = "https://m.zixin.com.cn/docdown/2487564.html";
if (wx) {
wx.config({
debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
appId: 'wx49d3b0cb6fb382c4', // 必填，公众号的唯一标识
timestamp: '1748921543', // 必填，生成签名的时间戳
nonceStr: '9BF31C7FF062936A96D3C8BD1F8F2FF3', // 必填，生成签名的随机串
signature: '6051e9b1ee2748fffba1a02822b01503dc2d1d83',// 必填，签名，见附录1
jsApiList: ['onMenuShareAppMessage', 'onMenuShareTimeline', 'updateAppMessageShareData', 'updateTimelineShareData', 'hideMenuItems'] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2
//openTagList: ["wx-open-launch-weapp"]//H5打开小程序
});
wx.ready(function () { //需在用户可能点击分享按钮前就先调用
wx.hideMenuItems({// 要隐藏的菜单项，只能隐藏“传播类”和“保护类”按钮，所有menu项见附录3
menuList: ['menuItem:share:qq', 'menuItem:favorite', 'menuItem:share:QZone', 'menuItem:share:email', 'menuItem:originPage', 'menuItem:readMode', 'menuItem:delete', 'menuItem:editTag', 'menuItem:share:facebook', 'menuItem:share:weiboApp', 'menuItem:share:brand']
});
var shareData = {
title: title, // 分享标题
desc: desc,//这里请特别注意是要去除html
link: link, // 分享链接，该链接域名或路径必须与当前页面对应的公众号JS安全域名一致
imgUrl: imgUrl, // 分享图标
};
wx.updateAppMessageShareData(shareData);//1.4 分享到朋友
wx.updateTimelineShareData(shareData);//1.4分享到朋友圈
});
}
}

首页

分类

专题

我的

$(document).ready(function () {
var arr = $(".headercontent");
for (var i = 0; i < arr.length; i++) {
(function (index) {
var url = "https://m.zixin.com.cn/header.aspx";
$.get(url + "?tp=0&t=" + (new Date()).valueOf(), function (d) {
try {
arr.eq(index).empty().html(d);
} catch (e) { }
try {
arr.html(d);
} catch (e) { }
});
})(i);
}
});

$("img.lazys").lazyload({
threshold: 200,
effect: "fadeIn"
});

}
}
bool obj_set_equal(vector &l_obj_set, vector &r_obj_set)
{
if (l_obj_set.size() != r_obj_set.size())
return false;
bool found = false;
int i = 0, j = 0;
for (i = 0; i < l_obj_set.size(); i++)
{
fou24、nd = false;
for (j = 0; j < r_obj_set.size(); j++)
{
if (l_obj_set[i] == r_obj_set[j])
{
found = true;
break;
}
}
if (!found)
return false;
25、}
return true;
}
bool ind_set_equal(vector * > &l_ind_set, vector * > &r_ind_set)
{
if (l_ind_set.size() != r_ind_set.size())
return false;
bool found = false;
int i = 0, j = 0;
for (i = 0; i < l_ind_se26、t.size(); i++)
{
found = false;
for (j = 0; j < r_ind_set.size(); j++)
{
if (obj_set_equal(*l_ind_set[i], *r_ind_set[j]))
{
found = true;
break;
}
}
27、 if (!found)
return false;
}
return true;
}
void core()
{
// get IND(C)
int i = 0;
vector * > ind_set_tmp;
set_mask();
for (i = 0; i < g_obj_cnt; i++)
{
add_obj_to_ind_set(g_i28、nd_c_set, g_obj_set[i]);
}
int j = 0;
for (i = 0; i < g_attr_cnt; i++)
{
clear_ind_set(ind_set_tmp);
clr_mask(g_attr_set[i]);
// get IND(C-{xi})
for (j = 0; j < g_obj_cnt; j++)
{
add_obj_to_in29、d_set(ind_set_tmp, g_obj_set[j]);
}
if (!ind_set_equal(g_ind_c_set, ind_set_tmp))
g_core_set.push_back(g_attr_set[i]);
}
clear_ind_set(ind_set_tmp);
// already get core
cout << "--------------------------------------------------30、" << endl;
cout << "core:\n{";
for (i = 0; i < g_core_set.size(); i++)
{
//copy to B
g_b_set.push_back(g_core_set[i]);
cout << g_core_set[i];
if (i < g_core_set.size() - 1)
cout << ", "; 31、
}
cout << "}\n";
}
bool attr_set_equal(vector &l_attr_set, vector &r_attr_set)
{
if (l_attr_set.size() != r_attr_set.size())
return false;
int i = 0, j = 0;
bool found = false;
for (i = 0; i < l_attr_set.size(); i+32、)
{
found = false;
for (j = 0; j < r_attr_set.size(); j++)
{
if (l_attr_set[i] == r_attr_set[j])
{
found = true;
break;
}
}
if (!found)
33、 return false;
}
return true;
}
void attr_set_sub(vector &l_attr_set, vector &r_attr_set, vector &res_set)
{
int i = 0, j = 0;
bool found = false;
for (i = 0; i < l_attr_set.size(); i++)
{
found =34、 false;
for (j = 0; j < r_attr_set.size(); j++)
{
if (l_attr_set[i] == r_attr_set[j])
{
found = true;
break;
}
}
if (!found)
res_set.push_back(l_att35、r_set[i]);
}
}
void get_ind_set(vector &mask_set, vector * > &res_ind_set)
{
int i = 0;
// get IND set
set_mask_set(mask_set);
for (i = 0; i < g_obj_cnt; i++)
{
add_obj_to_ind_set(res_ind_set, g_obj_set[36、i]);
}
}
void attr_set_copy(vector &dst_attr_set, vector &src_attr_set)
{
int i = 0;
dst_attr_set.clear();
for (i = 0; i < src_attr_set.size(); i++)
{
dst_attr_set.push_back(src_attr_set[i]);
}
}
void red37、uction()
{
vector b_set_tmp;
vector c_sub_b;
vector max_sig;
vector * > ind_set_tmp;
int max = 0, max_idx = 0, max_cnt = 0;
int i = 0, j = 0;
// get IND(B)
get_ind_set(g_b_set, g_ind_b_set);
38、
while (!ind_set_equal(g_ind_c_set, g_ind_b_set))
{
if (attr_set_equal(g_b_set, g_attr_set))
break;
c_sub_b.clear();
attr_set_sub(g_attr_set, g_b_set, c_sub_b);
max_sig.clear();
for (i = 0; i < c_sub_b.size(); i+39、)
{
attr_set_copy(b_set_tmp, g_b_set);
b_set_tmp.push_back(c_sub_b[i]);
clear_ind_set(ind_set_tmp);
get_ind_set(b_set_tmp, ind_set_tmp);
max_sig.push_back(ind_set_tmp.size() - g_ind_b_set.size());
40、 }
// now, process max_sig
max = max_sig[0];
max_idx = 0;
max_cnt = 0;

for (j = 1; j < max_sig.size(); j++)
{
if (max_sig[j] > max)
{
max = max_sig[j];
41、 max_idx = j;
max_cnt = 1;
}
else if (max == max_sig[j])
{
max_cnt++;
}
}
g_b_set.push_back(c_sub_b[max_idx]);
if (attr_set_equal(g_b_set, g_attr_set))42、
break;
// get IND(B)
clear_ind_set(g_ind_b_set);
get_ind_set(g_b_set, g_ind_b_set);
}
clear_ind_set(ind_set_tmp);
// get reduction now
cout << "-----------------------------------------------------------------------43、" << endl;
cout << "reduction set:\n{";
for (i = 0; i < g_b_set.size(); i++)
{
cout << g_b_set[i];
if (i < g_b_set.size() - 1)
cout << ", ";
}
cout << "}\n";
}
void print_red_data()
{
int i = 0, j =44、 0;
set_mask_set(g_b_set);
cout << "-------------------------------------------------------------------------" << endl;
cout << " ";
for (i = 0; i < g_attr_cnt; i++)
{
if (g_mask[i])
{
cout << setw(4) << setiosflags(45、ios::left) << g_attr_set[i];
if (i < g_attr_cnt - 1)
cout << " ";
}
}
cout << endl;
cout << "-------------------------------------------------------------------------" << endl;

for (i = 0; i < g_obj_cnt; i++) 46、
{
cout << setw(3) << g_obj_set[i]->obj_name << " ";
for (j = 0; j < g_attr_cnt; j++)
{
if (g_mask[j])
{
cout << setw(3) << setiosflags(ios::left) << g_obj_set[i]->attr_val[j];
if (j < 47、g_attr_cnt - 1)
cout << setw(3) << " ";
}
}
cout << endl;
}
}
int main()
{
read_data();
print_data();
core();
reduction();
print_red_data();
clear_data();
app_48、exit();
}
/* 测试数据
21/10 X1 X2 X3 X4 X5 X6 X7 X8 X9 y
U1 c 6 y E m h h a m m
U2 c 6 n E m m h ma m m
U3 c 6 n E m h h ma m m
U4 c 4 y E m h h ma 49、 l h
U5 c 6 n E m m m ma m m
U6 c 6 n B m m m a he lo
U7 c 6 n E m m h ma he lo
U8 s 4 n B sm h lo ma l h
U9 c 4 n B sm h lo ma m m
U10 50、c 4 n B sm h m a m m
U11 s 4 n E sm h lo ma l h
U12 s 4 n E m m m ma m h
U13 c 4 n B m m m ma m m
U14 s 4 y E sm h h ma m h
U15 s 4 n B

var _hmt = _hmt || [];
(function() {
var hm = document.createElement("script");
hm.src = "https://hm.baidu.com/hm.js?6e2a21bc68316db308b5fdc9a0d11f2e";
var s = document.getElementsByTagName("script")[0];
s.parentNode.insertBefore(hm, s);
})();

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function stopPropagation(e) {
var ev = e || window.event;
if (ev.stopPropagation) {
ev.stopPropagation();
}
else if (window.event) {
window.event.cancelBubble = true;//兼容IE
}
}
$("#navmore").click(function (e) {
$("#navcontent").show();
$("#navlogo").show();
stopPropagation(e);
var navcontentwidth = $("#navcontent").width();
$('#navcontent').css({ 'right': '-' + navcontentwidth + 'px' });
$("#navcontent").show().animate({ "right": 0 }, 300);
});
$(document).bind('click', function () {
var navcontentwidth = $("#navcontent").width();
$("#navcontent").animate({ 'right': '-' + navcontentwidth + 'px' }, 300, function () { $("#navcontent").hide(); });
$("#navlogo").fadeOut(300);
});
$("#navcontent").click(function (e) {
stopPropagation(e);
});
$("#navclose").click(function (e) {
var navcontentwidth = $("#navcontent").width();
$("#navcontent").animate({ 'right': '-' + navcontentwidth + 'px' }, 300, function () { $("#navcontent").hide(); });
$("#navlogo").fadeOut(300);
});

function BaseShare(title, desc, imgUrl) {
var link = "https://m.zixin.com.cn/docdown/2487564.html";
if (wx) {
wx.config({
debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
appId: 'wx49d3b0cb6fb382c4', // 必填，公众号的唯一标识
timestamp: '1748921543', // 必填，生成签名的时间戳
nonceStr: '9BF31C7FF062936A96D3C8BD1F8F2FF3', // 必填，生成签名的随机串
signature: '6051e9b1ee2748fffba1a02822b01503dc2d1d83',// 必填，签名，见附录1
jsApiList: ['onMenuShareAppMessage', 'onMenuShareTimeline', 'updateAppMessageShareData', 'updateTimelineShareData', 'hideMenuItems'] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2
//openTagList: ["wx-open-launch-weapp"]//H5打开小程序
});
wx.ready(function () { //需在用户可能点击分享按钮前就先调用
wx.hideMenuItems({// 要隐藏的菜单项，只能隐藏“传播类”和“保护类”按钮，所有menu项见附录3
menuList: ['menuItem:share:qq', 'menuItem:favorite', 'menuItem:share:QZone', 'menuItem:share:email', 'menuItem:originPage', 'menuItem:readMode', 'menuItem:delete', 'menuItem:editTag', 'menuItem:share:facebook', 'menuItem:share:weiboApp', 'menuItem:share:brand']
});
var shareData = {
title: title, // 分享标题
desc: desc,//这里请特别注意是要去除html
link: link, // 分享链接，该链接域名或路径必须与当前页面对应的公众号JS安全域名一致
imgUrl: imgUrl, // 分享图标
};
wx.updateAppMessageShareData(shareData);//1.4 分享到朋友
wx.updateTimelineShareData(shareData);//1.4分享到朋友圈
});
}
}
function BaseShare(title, desc, imgUrl, link) {
if (link=="")
link = "https://m.zixin.com.cn/docdown/2487564.html";
if (wx) {
wx.config({
debug: false, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。
appId: 'wx49d3b0cb6fb382c4', // 必填，公众号的唯一标识
timestamp: '1748921543', // 必填，生成签名的时间戳
nonceStr: '9BF31C7FF062936A96D3C8BD1F8F2FF3', // 必填，生成签名的随机串
signature: '6051e9b1ee2748fffba1a02822b01503dc2d1d83',// 必填，签名，见附录1
jsApiList: ['onMenuShareAppMessage', 'onMenuShareTimeline', 'updateAppMessageShareData', 'updateTimelineShareData', 'hideMenuItems'] // 必填，需要使用的JS接口列表，所有JS接口列表见附录2
//openTagList: ["wx-open-launch-weapp"]//H5打开小程序
});
wx.ready(function () { //需在用户可能点击分享按钮前就先调用
wx.hideMenuItems({// 要隐藏的菜单项，只能隐藏“传播类”和“保护类”按钮，所有menu项见附录3
menuList: ['menuItem:share:qq', 'menuItem:favorite', 'menuItem:share:QZone', 'menuItem:share:email', 'menuItem:originPage', 'menuItem:readMode', 'menuItem:delete', 'menuItem:editTag', 'menuItem:share:facebook', 'menuItem:share:weiboApp', 'menuItem:share:brand']
});
var shareData = {
title: title, // 分享标题
desc: desc,//这里请特别注意是要去除html
link: link, // 分享链接，该链接域名或路径必须与当前页面对应的公众号JS安全域名一致
imgUrl: imgUrl, // 分享图标
};
wx.updateAppMessageShareData(shareData);//1.4 分享到朋友
wx.updateTimelineShareData(shareData);//1.4分享到朋友圈
});
}
}

首页

分类

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我的

$(document).ready(function () {
var arr = $(".headercontent");
for (var i = 0; i < arr.length; i++) {
(function (index) {
var url = "https://m.zixin.com.cn/header.aspx";
$.get(url + "?tp=0&t=" + (new Date()).valueOf(), function (d) {
try {
arr.eq(index).empty().html(d);
} catch (e) { }
try {
arr.html(d);
} catch (e) { }
});
})(i);
}
});

$("img.lazys").lazyload({
threshold: 200,
effect: "fadeIn"
});

nd = false;
for (j = 0; j < r_obj_set.size(); j++)
{
if (l_obj_set[i] == r_obj_set[j])
{
found = true;
break;
}
}
if (!found)
return false;
}
return true;
}
bool ind_set_equal(vector * > &l_ind_set, vector * > &r_ind_set)
{
if (l_ind_set.size() != r_ind_set.size())
return false;
bool found = false;
int i = 0, j = 0;
for (i = 0; i < l_ind_set.size(); i++)
{
found = false;
for (j = 0; j < r_ind_set.size(); j++)
{
if (obj_set_equal(*l_ind_set[i], *r_ind_set[j]))
{
found = true;
break;
}
}
if (!found)
return false;
}
return true;
}
void core()
{
// get IND(C)
int i = 0;
vector * > ind_set_tmp;
set_mask();
for (i = 0; i < g_obj_cnt; i++)
{
add_obj_to_ind_set(g_ind_c_set, g_obj_set[i]);
}
int j = 0;
for (i = 0; i < g_attr_cnt; i++)
{
clear_ind_set(ind_set_tmp);
clr_mask(g_attr_set[i]);
// get IND(C-{xi})
for (j = 0; j < g_obj_cnt; j++)
{
add_obj_to_ind_set(ind_set_tmp, g_obj_set[j]);
}
if (!ind_set_equal(g_ind_c_set, ind_set_tmp))
g_core_set.push_back(g_attr_set[i]);
}
clear_ind_set(ind_set_tmp);
// already get core
cout << "--------------------------------------------------" << endl;
cout << "core:\n{";
for (i = 0; i < g_core_set.size(); i++)
{
//copy to B
g_b_set.push_back(g_core_set[i]);
cout << g_core_set[i];
if (i < g_core_set.size() - 1)
cout << ", ";
}
cout << "}\n";
}
bool attr_set_equal(vector &l_attr_set, vector &r_attr_set)
{
if (l_attr_set.size() != r_attr_set.size())
return false;
int i = 0, j = 0;
bool found = false;
for (i = 0; i < l_attr_set.size(); i+)
{
found = false;
for (j = 0; j < r_attr_set.size(); j++)
{
if (l_attr_set[i] == r_attr_set[j])
{
found = true;
break;
}
}
if (!found)
return false;
}
return true;
}
void attr_set_sub(vector &l_attr_set, vector &r_attr_set, vector &res_set)
{
int i = 0, j = 0;
bool found = false;
for (i = 0; i < l_attr_set.size(); i++)
{
found = false;
for (j = 0; j < r_attr_set.size(); j++)
{
if (l_attr_set[i] == r_attr_set[j])
{
found = true;
break;
}
}
if (!found)
res_set.push_back(l_attr_set[i]);
}
}
void get_ind_set(vector &mask_set, vector * > &res_ind_set)
{
int i = 0;
// get IND set
set_mask_set(mask_set);
for (i = 0; i < g_obj_cnt; i++)
{
add_obj_to_ind_set(res_ind_set, g_obj_set[i]);
}
}
void attr_set_copy(vector &dst_attr_set, vector &src_attr_set)
{
int i = 0;
dst_attr_set.clear();
for (i = 0; i < src_attr_set.size(); i++)
{
dst_attr_set.push_back(src_attr_set[i]);
}
}
void reduction()
{
vector b_set_tmp;
vector c_sub_b;
vector max_sig;
vector * > ind_set_tmp;
int max = 0, max_idx = 0, max_cnt = 0;
int i = 0, j = 0;
// get IND(B)
get_ind_set(g_b_set, g_ind_b_set);

while (!ind_set_equal(g_ind_c_set, g_ind_b_set))
{
if (attr_set_equal(g_b_set, g_attr_set))
break;
c_sub_b.clear();
attr_set_sub(g_attr_set, g_b_set, c_sub_b);
max_sig.clear();
for (i = 0; i < c_sub_b.size(); i+)
{
attr_set_copy(b_set_tmp, g_b_set);
b_set_tmp.push_back(c_sub_b[i]);
clear_ind_set(ind_set_tmp);
get_ind_set(b_set_tmp, ind_set_tmp);
max_sig.push_back(ind_set_tmp.size() - g_ind_b_set.size());
}
// now, process max_sig
max = max_sig[0];
max_idx = 0;
max_cnt = 0;

for (j = 1; j < max_sig.size(); j++)
{
if (max_sig[j] > max)
{
max = max_sig[j];
max_idx = j;
max_cnt = 1;
}
else if (max == max_sig[j])
{
max_cnt++;
}
}
g_b_set.push_back(c_sub_b[max_idx]);
if (attr_set_equal(g_b_set, g_attr_set))
break;
// get IND(B)
clear_ind_set(g_ind_b_set);
get_ind_set(g_b_set, g_ind_b_set);
}
clear_ind_set(ind_set_tmp);
// get reduction now
cout << "-----------------------------------------------------------------------" << endl;
cout << "reduction set:\n{";
for (i = 0; i < g_b_set.size(); i++)
{
cout << g_b_set[i];
if (i < g_b_set.size() - 1)
cout << ", ";
}
cout << "}\n";
}
void print_red_data()
{
int i = 0, j = 0;
set_mask_set(g_b_set);
cout << "-------------------------------------------------------------------------" << endl;
cout << " ";
for (i = 0; i < g_attr_cnt; i++)
{
if (g_mask[i])
{
cout << setw(4) << setiosflags(ios::left) << g_attr_set[i];
if (i < g_attr_cnt - 1)
cout << " ";
}
}
cout << endl;
cout << "-------------------------------------------------------------------------" << endl;

for (i = 0; i < g_obj_cnt; i++)
{
cout << setw(3) << g_obj_set[i]->obj_name << " ";
for (j = 0; j < g_attr_cnt; j++)
{
if (g_mask[j])
{
cout << setw(3) << setiosflags(ios::left) << g_obj_set[i]->attr_val[j];
if (j < g_attr_cnt - 1)
cout << setw(3) << " ";
}
}
cout << endl;
}
}
int main()
{
read_data();
print_data();
core();
reduction();
print_red_data();
clear_data();
app_exit();
}
/* 测试数据
21/10 X1 X2 X3 X4 X5 X6 X7 X8 X9 y
U1 c 6 y E m h h a m m
U2 c 6 n E m m h ma m m
U3 c 6 n E m h h ma m m
U4 c 4 y E m h h ma l h
U5 c 6 n E m m m ma m m
U6 c 6 n B m m m a he lo
U7 c 6 n E m m h ma he lo
U8 s 4 n B sm h lo ma l h
U9 c 4 n B sm h lo ma m m
U10 c 4 n B sm h m a m m
U11 s 4 n E sm h lo ma l h
U12 s 4 n E m m m ma m h
U13 c 4 n B m m m ma m m
U14 s 4 y E sm h h ma m h
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