oj.uz

Submission #502855

# Submission time Handle Problem Language Result Execution time Memory
502855 2022-01-06T16:16:33 Z amunduzbaev Remittance (JOI19_remittance) C++14
0 / 100
 0 ms 204 KB 
#include "bits/stdc++.h"
using namespace std;

#define ar array
#define int long long

signed main(){
	ios::sync_with_stdio(0); cin.tie(0);

	int n; cin>>n;
	vector<int> a(n), b(n);
	for(int i=0;i<n;i++){
		cin>>a[i]>>b[i];
	}

	for(int j=0;j<2;j++){
		for(int i=0;i<n;i++){
			if(a[i] <= b[i]) continue;
			int x = (a[i] - b[i] + 1) / 2;
			if(a[i] >= x * 2) continue;
			a[(i + 1) % n] += x;
			a[i] -= 2 * x;
		}
	}
	
	for(int i=0;i<n;i++){
		if(a[i] != b[i]){
			cout<<"No\n";
			return 0;
		}
	}
	
	cout<<"Yes\n";
}

Subtask #1
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Incorrect 0 ms 204 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Incorrect 0 ms 204 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Incorrect 0 ms 204 KB Output isn't correct
5 Halted 0 ms 0 KB -