제출 #757380

#제출 시각아이디문제언어결과실행 시간메모리
757380alexdd송금 (JOI19_remittance)C++17
0 / 100
1 ms212 KiB
#include<bits/stdc++.h> using namespace std; #define int long long int n; int a[1000005]; int b[1000005]; bool running() { for(int i=0;i<n;i++) if((a[i]-b[i])>=2) return 1; return 0; } signed main() { cin>>n; for(int i=0;i<n;i++) { cin>>a[i]>>b[i]; } while(running()) { for(int i=0;i<n;i++) { if((a[i]-b[i])>=2) { int x = (a[i]-b[i])/2; a[i] -= 2*x; a[(i+1)%n] += x; } } } bool good=1; for(int i=0;i<n;i++) if(a[i]!=b[i]) good=0; if(good) cout<<"Yes"; else cout<<"No"; return 0; }
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