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贴段代码,16MS

Posted by speedcell4 at 2011-08-18 10:30:53 on Problem 1325
#include<iostream>
#define SIZE 1010 
using namespace std;
int n,m,k,z,x,y;
int t[SIZE];
bool v[SIZE],a[SIZE][SIZE];
bool find(int x)
{
    for(int i=0;m-i>0;i++)
    {
        if(v[i]==false&&a[x][i]==true)
        {
            v[i]=true;
            if(t[i]==-1||find(t[i]))
            {
                t[i]=x;
                return true;
            }
        }
    }
    return false;
}
int findMatch(void) 
{
    int count=0;
    for(int i=0;n-i>0;i++)
    {
        memset(v,false,sizeof(v));
        if(find(i)) count++;
    }
    return count;
}
int main()
{
    while(scanf("%d",&n),n)
    {
        scanf("%d %d",&m,&k);
        memset(t,-1,sizeof(t));
        memset(a,false,sizeof(a));
        for(int i=0;k-i>0;i++)
        {
            scanf("%d %d %d",&z,&x,&y);
            if(x*y!=0) a[x][y]=true;
        }
        printf("%d\n",findMatch());
    }
    return 0;
}

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