제출 #1175394

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1175394		PakinDioxide	Self Study (JOI22_ho_t2)	C++17	62 / 100	121 ms	5132 KiB

Main

/*
    author  : PakinDioxide
    created : 28/03/2025 20:10
    task    : JOI22_ho_t2
*/
#include <bits/stdc++.h>
#define ll unsigned long long

using namespace std;

int main() {
    ios::sync_with_stdio(0), cin.tie(0);
    ll n, m;
    cin >> n >> m;
    ll a[n], b[n];
    for (auto &e : a) cin >> e;
    for (auto &e : b) cin >> e;
    ll l = 0, r = ULLONG_MAX, ans = 0;
    while (l <= r) {
        ll x = l + (r-l)/2, cnt = 0;
        for (int i = 0; i < n; i++) {
            if (a[i] >= b[i]) {
                if (a[i] * m >= x) cnt += ceil((double) x / a[i]);
                else cnt += m + ceil((double) (x - a[i] * m) / b[i]);
            } else cnt += ceil((double) x / b[i]);
            if (cnt > n*m) break;
        }
        if (cnt <= n*m) ans = x, l = x+1;
        else r = x-1;
    }
    cout << ans << '\n';
}

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