제출 #1152179

#제출 시각아이디문제언어결과실행 시간메모리
1152179ace5송금 (JOI19_remittance)C++20
0 / 100
0 ms328 KiB
#include <bits/stdc++.h>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    int64_t a[n],b[n];
    for(int i = 0;i < n;++i)
    {
        cin >> a[i] >> b[i];
    }
    int64_t tp = 0;
    for(int i = 0;i < 10*n;++i)
    {
        int j = i%n;
        a[j] += tp;
        if(a[j] > b[j])
        {
            tp = (a[j]-b[j])/2;
            a[j] = b[j] + (a[j]-b[j])%2;
        }
        else
            tp = 0;
    }
    int no = 0;
    for(int i = 0;i < n;++i)
    {
        if(a[i] != b[i])
            no = 1;
    }
    cout << (no ? "No\n" : "Yes\n");
}
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