Submission #851838

#	Time	Username	Problem	Language	Result	Execution time	Memory
851838		vjudge1	Osumnjičeni (COCI21_osumnjiceni)	C++17	0 / 110	1033 ms	10968 KiB

Main

//author:
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;

#define ONLINE_JUDGE

void solve() {
    int n;
    cin >> n;

    vector <pair <int, int>> vec(n +1);
    for(int i = 1; i <= n; i++) {
        cin >> vec[i].second >> vec[i].first;

        vec[i].first *= -1;
        vec[i].second *= -1;
    }

    int q;
    cin >> q;
    for(int i = 1; i <= q; i++) {
        int l, r;
        cin >> l >> r;

        multiset <pair <int, int>> ms(vec.begin() + l, vec.begin() + r +1);
        int cnt = 0;
        while(!ms.empty()) {
            auto it = ms.begin();
            while(it != ms.end()) {
                auto [a, b] = *it;
                //cerr << -a << " " << -b << "\n";
                ms.erase(it);

                if(ms.empty()) {
                    break;
                }

                it = ms.lower_bound({a, 0});
            }

            cnt++;
        }

        cout << cnt << "\n";
        //cerr << "\n";
    }
    
    return;
}

signed main() {
    #ifndef ONLINE_JUDGE
        freopen(".in", "r", stdin);
        freopen(".out", "w", stdout);
    #endif

    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);

    int t = 1; //cin >> t;
    while(t--)
        solve();

    return 0;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 50