LA 3989 - Ladies' Choice【稳定婚姻问题】

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稳定婚姻学习资料：

http://www.matrix67.com/blog/?s=%E7%A8%B3%E5%AE%9A%E5%A9%9A%E5%A7%BB
http://www.programmer.com.cn/12001/

题目链接：https://icpcarchive.ecs.baylor.edu/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=1990

题意：稳定婚姻

代码：

#include <stdio.h>#include <iostream>#include <math.h>#include <stdlib.h>  #include <ctype.h>  #include <algorithm>  #include <vector>  #include <string.h>  #include <queue>  #include <stack>  #include <set>  #include <map>  #include <string>  #include <sstream>  #include <malloc.h>using namespace std;const int MAXN = 1010;int pref[MAXN][MAXN], order[MAXN][MAXN], Next[MAXN];int future_husband[MAXN], future_wife[MAXN];queue<int> q;void engage(int man, int woman){    int m = future_husband[woman];    if (m)    {        future_wife[m] = 0;        q.push(m);    }    future_wife[man] = woman;    future_husband[woman] = man;}int main(){    int t;    scanf("%d",&t);    while (t--)    {        while (!q.empty()) q.pop();        int  n;        scanf("%d", &n);        for (int i = 1;i <= n;i++)        {            for (int j = 1;j <= n;j++)                scanf("%d",&pref[i][j]);            Next[i] = 1;            future_wife[i] = 0;            q.push(i);        }        for (int i = 1;i <= n;i++)        {            for (int j = 1;j <= n;j++)            {                int x;                scanf("%d", &x);                order[i][x] = j;            }            future_husband[i] = 0;        }        while (!q.empty())        {            int man = q.front();q.pop();            int woman = pref[man][Next[man]++];            if (!future_husband[woman])                engage(man, woman);            else if (order[woman][man] < order[woman][future_husband[woman]])                engage(man, woman);            else q.push(man);        }        for (int i = 1;i <= n;i++)            printf("%d\n", future_wife[i]);        if (t) printf("\n");    }    return 0;}

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