Submission #943285

#	Time	Username	Problem	Language	Result	Execution time	Memory
943285		Lilypad	Curtains (NOI23_curtains)	C++14	9 / 100	1597 ms	7768 KiB

curtains

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<ll,ll>
#define pb push_back
#define fi first
#define se second

const ll N = 5e5+3;

ll n,m,q,a,b;
ll l[N],r[N],s[N],e[N];
ll tmp[N];

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> n >> m >> q;
	for(int i=1; i<=m; i++) {
		cin >> l[i] >> r[i];
	}
	while(q--) {
		cin >> a >> b;
		for(int i=1; i<=n; i++) tmp[i] = false;
		for(int i=1; i<=m; i++) {
			if(l[i] >= a && r[i] <= b) {
				for(int j=l[i]; j<=r[i]; j++) {
					tmp[j] = true;
				}
			}
		}
		bool ans = true;
		for(int i=a; i<=b; i++) {
			if(!tmp[i]) {
				cout << "NO" << endl;
				ans = false;
				break;
			}
		}
		if(ans) cout << "YES" << endl;
	}
}

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