Submission #1131869

#	Time	Username	Problem	Language	Result	Execution time	Memory
1131869		lopkus	Self Study (JOI22_ho_t2)	C++20	0 / 100	133 ms	4936 KiB

Main

#include <bits/stdc++.h>

#define int long long

using namespace std;

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n, m;
    cin >> n >> m;
    vector<int> a(n + 1, 0);
    vector<int> b(n + 1, 0);
    for(int i = 1; i <= n; i++) {
        cin >> a[i];
    }
    for(int i = 1; i <= n; i++) {
        cin >> b[i];
    }
    int l = 0, r = 1e18, ans = - 1;
    while(l <= r) {
        int mid = (l + r) / 2;
        int save = n * m;
        for(int i = 1; i <= n; i++) {
            int current = mid;
            if(a[i] > b[i]) {
                int cnt = min(m, (mid + a[i] - 1) / a[i]);
                save -= cnt;
                current -= cnt * a[i];
            }
            if(current > 0) {
                save -= (current + b[i] - 1) / b[i];
            }
        }
        if(save < 0) {
            r = mid - 1;
        }
        else {
            l = mid + 1;
            ans = mid;
        }
    }
    cout << ans;
}

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