Submission #1136834

#	Time	Username	Problem	Language	Result	Execution time	Memory
1136834		onbert	Remittance (JOI19_remittance)	C++20	0 / 100	1 ms	328 KiB

remittance

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int maxn = 1e6 + 5;
int n;
int a[maxn], b[maxn];
signed main() {
    cin >> n;
    for (int i=0;i<n;i++) cin >> a[i] >> b[i];
    for (int ii=0;ii<=1;ii++) {
        for (int i=0;i<n;i++) {
            int trans = max(a[i] - b[i], (int)0) / 2;
            a[(i+1) % n] += trans;
            a[i] -= trans * 2;
            // cout << i << endl;
            // for (int j=0;j<n;j++) cout << a[j] << " "; cout << endl;
        }
    }
    for (int i=0;i<n;i++) if (a[i] != b[i]) {
        cout << "No\n";
        return 0;
    }
    cout << "Yes\n";
}

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