[UVA-839]

来源：互联网发布：血腥玛丽鸡尾酒知乎编辑：程序博客网时间：2024/06/08 02:50

#include<bits/stdc++.h>using namespace std;int a = 1;int  decide(){    int W1, D1, W2, D2;    cin >> W1 >> D1 >> W2 >> D2;    if(!W1)        W1 = decide();    if(!W2)        W2 = decide();    if(W1 * D1 != W2 * D2)            a = 0;    return W1 + W2;}int main(){   // freopen("222.txt","r",stdin);   // freopen("111.txt", "w", stdout);    int T;    cin >> T;    while(T--)    {        a = 1;        decide();        if(a)            printf("YES\n");        else            printf("NO\n");        if(T)            printf("\n");    }    return 0;}

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