EOJ 71: 一个游戏

#include <bits/stdc++.h>
using namespace std;

int T, n, a, b;
int ind[105], outd[105];
int vis[105][105];
int main()
{
    cin>>T;
    while(T--){
        cin>>n;
        for(int i=0;i<n;++i){
            cin>>a>>b;
            if(!vis[a][b]) {outd[a]++;ind[b]++;vis[a][b]=1;}
        }
        int flag=0;
        for(int i=0;i<105;++i){
            if(outd[i]>1) flag=1;
            if(ind[i]&&outd[i]) flag=1;
        }
        if(!flag) cout<<"Lucky dxw!"<<endl;
        else cout<<"Poor dxw!"<<endl;
        memset(ind, 0, sizeof(ind));
        memset(outd, 0, sizeof(outd));
        memset(vis, 0, sizeof(vis));
    }
    return 0;
}