Submission #963007

#	Time	Username	Problem	Language	Result	Execution time	Memory
963007		happy_node	Remittance (JOI19_remittance)	C++17	0 / 100	884 ms	2496 KiB

remittance

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

const int MX=1e6+5;
int N;
ll A[MX], B[MX];

int main() {
	cin.tie(0); ios_base::sync_with_stdio(0);

	cin>>N;
	for(int i=0;i<N;i++) cin>>A[i]>>B[i];

	for(int k=0;k<100000000;k++) {
		for(int i=0;i<N;i++) {
			if(A[i]>B[i]) {
				ll nxt=(A[i]-B[i])/2;
				A[i]-=2*nxt;
				A[(i+1)%N]+=nxt;
			}
		}
	}

	bool ok=1;
	for(int i=0;i<N;i++) 
		ok&=A[i]==B[i];

	cout<<(ok?"Yes":"No")<<'\n';
}

• Subtask 1: 0 / 15
• Subtask 2: 0 / 40
• Subtask 3: 0 / 45