Submission #1008561

#	Time	Username	Problem	Language	Result	Execution time	Memory
1008561		toast12	Fountain (eJOI20_fountain)	C++14	30 / 100	47 ms	5332 KiB

fountain

#include <bits/stdc++.h>
using namespace std;

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    int n, q;
    cin >> n >> q;
    vector<int> d(n+1), c(n+1);
    for (int i = 1; i <= n; i++) {
        cin >> d[i] >> c[i];
    }
    vector<int> ps;
    ps.push_back(0);
    for (int i = 1; i <= n; i++) {
        ps.push_back(c[i]+ps.back());
    }
    while (q--) {
        int r, v;
        cin >> r >> v;
        int ans = 0;
        int x = ps[r-1];
        auto it = lower_bound(ps.begin(), ps.end(), x+v);
        if (it != ps.end())
            ans = it-ps.begin();
        cout << ans << '\n';
    }
    return 0;
}

• Subtask 1: 0 / 30
• Subtask 2: 30 / 30
• Subtask 3: 0 / 40