Submission #1313081

#	Time	Username	Problem	Language	Result	Execution time	Memory
1313081		aryan	Curtains (NOI23_curtains)	C++20	9 / 100	1595 ms	1208 KiB

curtains

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

using i64 = long long;


int main(){
        
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int n,m,q;
    cin >> n >> m >> q;
    vector<int> l(m),r(m);
    for(int i = 0;i < m;i++){
        cin >> l[i] >> r[i];
        l[i] --;
        r[i] --;
    }

    while(q --){
        int s,e;
        cin >> s >> e;
        s --;
        e --;
        vector<int> hs(n);
        for(int i = 0;i < m;i++){
            if(s <= l[i] && e >= r[i]){
                for(int j = l[i];j <= r[i];j++){
                    hs[j] = 1;
                }
            }
        }
        bool ok = true;
        for(int i = s;i <= e;i++){
            if(hs[i] == 0){
                ok = false;
            }
        }
        cout << (ok ? "YES\n" : "NO\n");
    }

    return 0;
}

• Subtask 1: 3 / 3
• Subtask 2: 6 / 6
• Subtask 3: 0 / 15
• Subtask 4: 0 / 20
• Subtask 5: 0 / 36
• Subtask 6: 0 / 20