Submission #469602

#	Time	Username	Problem	Language	Result	Execution time	Memory
469602		Itamar	Fountain (eJOI20_fountain)	C++14	0 / 100	1586 ms	1788 KiB

fountain

#include <vector>
#include <algorithm>
using namespace std;
#include <iostream>

vector<int> pre;
int n;
/*int lower_bo(int l, int r, int val) {
    int mid = (l + r) / 2;
    if (pre[mid] < val && (mid == n || pre[mid+1] >= val) ) {
        return mid+1;
    }
    if (pre[mid] < val) {
        return lower_bo(mid + 1, r, val);
    }
    if (pre[mid] > val) {
        return lower_bo(l, mid - 1, val);
    }
}*/
int main()
{
    int q;
    cin >> n >> q;
    vector<int> d;
    vector<int> c;
    pre.push_back(0);

    for (int i = 1; i < n+1; i++) {
        int x, y;
        cin >> x >> y;
        d.push_back(x);
        pre.push_back(y+pre[i-1]);
        c.push_back(y);
    }
    for (int i = 0; i < q; i++) {
        int r, v;
        cin >> r >> v;
        int it = r;
        while (v > c[r]) {
            if (r == n) {
                it = 0;
                break;
            }
            r++;
            v -= c[r];
        }
        //int it = lower_bo(1, n, v + pre[r - 1]);
        cout << it << endl;
    }
}

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