2014ACM上海邀请赛A解释称号

#include <cstdio>
#include <cstring>
#include <iostream>
using namespace std;
const int M=510;
int m,n;
int map[M][M], match[M], chk[M];

int dfs(int p)
{
    int i;
    for(i=1;i<=m;i++)
        if( map[p][i] && chk[i]==0 )
        {
            chk[i]=1;
            if( match[i]==0 || dfs( match[i] ) )
            {
                match[i]=p;
                return 1;
            }
        }
    return 0;
}

int solve()
{
    int i,res;
    for(i=1,res=0; i<=n; i++)
    {
        memset(chk,0,sizeof(chk));
        res+=dfs(i);
    }
    return res;
}

int main()
{
    // freopen("in","r",stdin);
    // freopen("out","w",stdout);

    int k,i,x,t;
    scanf("%d",&t);
    while(t--)
    {
        scanf("%d%d",&n,&k);
        memset(map,0,sizeof(map));
        memset(match,0,sizeof(match));
        for(i=1;i<=n;i++)
        {
            scanf("%d",&x);
            while(x<=n){
                map[i][x]=1;
                x+=k;
            }
        }
        m=n;

        if(solve()==n)
            printf("Jerry\n");
        else
            printf("Tom\n");
    }
    return 0;
}