Submission #772956

#	Time	Username	Problem	Language	Result	Execution time	Memory
772956		Blagoj	Examination (JOI19_examination)	C++17	2 / 100	3060 ms	3080 KiB

examination

#include <bits/stdc++.h>

#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif

#pragma GCC optimize("Ofast,unroll-loops")

using namespace std;

#define endl '\n'
#define ll long long
#define all(x) x.begin(), x.end()

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n, q;
    cin >> n >> q;
    vector<pair<ll, ll>> v(n);
    vector<ll> val(n);
    for (int i = 0; i < n; i++) {
        cin >> v[i].first >> v[i].second;
    }
    sort(all(v));
    for (int i = 0; i < n; i++) val[i] = v[i].first;
    while (q--) {
        ll x, y, z;
        cin >> x >> y >> z;
        if (x > val[n - 1]) {
            cout << 0 << endl;
            continue;
        }
        int lower = lower_bound(all(val), x) - val.begin(), ans = 0;
        for (int i = lower; i < n; i++) ans += (v[i].second >= y && v[i].first + v[i].second >= z);
        cout << ans << endl;
    }
}

• Subtask 1: 2 / 2
• Subtask 2: 0 / 20
• Subtask 3: 0 / 21
• Subtask 4: 0 / 57