UVA 839 Not so Mobile

xiaoxiao2021-02-28  9

#include<bits/stdc++.h> using namespace std; bool solve(int& w){ int w1,d1,w2,d2; bool b1=1,b2=1; scanf("%d%d%d%d",&w1,&d1,&w2,&d2); if(!w1)b1=solve(w1); if(!w2)b2=solve(w2); w=w1+w2; return b1&&b2&&(w1*d1==w2*d2); } int main(){ int t,w; scanf("%d",&t); while(t--){ if(solve(w))printf("YES\n"); else printf("NO\n"); if(t)printf("\n"); } return 0; }
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