Submission #434065

#	Time	Username	Problem	Language	Result	Execution time	Memory
434065		Azimjon	Remittance (JOI19_remittance)	C++17	0 / 100	1 ms	324 KiB

remittance

// Muallif: Azimjon Mehmonali o'g'li

#include <bits/stdc++.h>

using namespace std;

#define int long long

const long double PI = 3.1415926535897;
const int mod = 1000000007LL;
const int INF = 1e18;

const int N = 100;

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

	int n;
	cin >> n;
	vector<int> a(n + 1), b(n + 1);
	for (int i = 1; i <= n; i++) {
		cin >> a[i] >> b[i];
	}

	pair<int, int> p{-1, -1};
	for (int i = 1; i <= n; i++) {
		p = max(p, make_pair(a[i] - b[i], i));
	}
	int t = 10;
	while (t--) {
		for (int i = p.second; i < n; i++) {
			if (a[i] < b[i]) continue;

			int z = a[i] - b[i];

			z /= 2;

			a[i] -= 2 * z;
			a[i + 1] += z;
		}
		int z = a[n] - b[n];

		z /= 2;

		a[n] -= 2 * z;
		a[1] += z;
		for (int i = 1; i < p.second; i++) {
			if (a[i] < b[i]) continue;

			int z = a[i] - b[i];

			z /= 2;

			a[i] -= 2 * z;
			a[i + 1] += z;
		}
	}

	if (a == b) {
		cout << "Yes" << endl;
	} else {
		cout << "No" << endl;
	}

	return 0;
}

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