Submission #936715

#	Time	Username	Problem	Language	Result	Execution time	Memory
936715		kitlix	Self Study (JOI22_ho_t2)	C++17	62 / 100	209 ms	10328 KiB

Main

#include <bits/stdc++.h>
#define int long long

using namespace std;

const int INF = 1e18;

signed main() {
    ios_base::sync_with_stdio(0), cin.tie(0);
    int n, w;
    cin >> n >> w;
    vector<int> a(n), b(n);
    for (auto& el : a)
        cin >> el;
    for (auto& el : b)
        cin >> el;
    for (int i = 0; i < n; ++i)
        a[i] = max(a[i], b[i]);
    int l = 0, r = INF;
    while (l + 1 < r) {
        int m = (l + r) / 2;
        int total = 0;
        for (int i = 0; i < n; ++i) {
            if (a[i] * w >= m) {
                total += ((m + a[i] - 1) / a[i]);
                continue;
            }
            total += w + (m - a[i] * w + b[i] - 1) / b[i];
            if (total > n * w)
                break;
        }
        if (total <= n * w)
            l = m;
        else
            r = m;
    }
    cout << l << '\n';
}

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