제출 #1325071

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1325071		zwezdinv	Self Study (JOI22_ho_t2)	C++20	0 / 100	135 ms	5120 KiB

Main

#include<bits/stdc++.h>

using ll = long long;

signed main() {
    std::cin.tie(nullptr)->sync_with_stdio(false);

    int n, m;
    std::cin >> n >> m;
    std::vector<ll> a(n), b(n);
    for (auto& i : a) std::cin >> i;
    for (auto& i : b) std::cin >> i;
    auto check = [&](ll s) -> bool {
        ll bal = 0;
        for (int i = 0; i < n; ++i) {
            if (b[i] >= a[i]) {
                bal += (s + b[i] - 1) / b[i] - m;
            } else {
                ll k = (s + a[i] - 1) / a[i];
                if (k > m) {
                    bal += (s - a[i] * m + b[i] - 1) / b[i];
                } else {
                    bal -= m - k;
                }
            }
        }
        return bal <= 0;
    };
    ll L = 0, R = 1e18;
    while (L != R) {
        ll M = (L + R) / 2 + 1;
        if (check(M)) L = M;
        else R = M - 1;
    }
    std::cout << L;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29
• Subtask 5: 0 / 9