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Submission #886067

# Submission time Handle Problem Language Result Execution time Memory
886067 2023-12-11T12:32:43 Z vjudge1 Curtains (NOI23_curtains) C++17
0 / 100
 1500 ms 25180 KB 
#include <bits/stdc++.h>
using namespace std;
#define fileio() freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout)
#define fastio() cin.tie(0), ios_base::sync_with_stdio(0)
#define sp " "
#define endl "\n"
#define pii pair<int, int>
#define st first
#define nd second
#define pb push_back
#define N 100005

const int INF = 1e9 + 7;

int32_t main(){
	//fileio();
	fastio();

	int n, m, q;
	cin>>n>>m>>q;
	vector<bitset<N>> dp(n + 5, 0);
	vector<int> l(m + 5, 0), r(m + 5, 0), ans(q, 0);
	vector<vector<int>> ex(n + 5);
	vector<vector<pii>> todo(n + 5);


	for (int i = 1; i <= m; i++){
		cin>>l[i]>>r[i];
		ex[l[i]].pb(r[i]);
	}

	for (int i = 1; i <= q; i++){
		int s, e;
		cin>>s>>e;
		todo[s].pb({e, i});
	}

	for (int i = n; i >= 1; i--){
		sort(ex[i].begin(), ex[i].end());
		int last = i;
		bitset<N> all(0);
		all = ~all;
		for (auto j : ex[i]){
			dp[i][j] = 1;
			for (int k = last; k < j; k++) all[k] = 0;
			while(last <= j){
				last++;
				//cout<<last<<sp<<all<<endl;
				dp[i] |= dp[last] & all;
			}
			last--;
		}
		//cout<<i<<": "<<dp[i]<<endl;
		for (auto j : todo[i]){
			if (dp[i][j.st]) ans[j.nd] = 1;
		}
	}

	for (int i = 1; i <= q; i++) {
		if (ans[i]) cout<<"YES\n";
		else cout<<"NO\n";

	}
	cerr<<"time taken : "<<(float)clock() / CLOCKS_PER_SEC<<" seconds\n";
}

Subtask #1
0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Runtime error 1 ms 856 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #2
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Runtime error 1 ms 856 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Runtime error 1 ms 856 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 25 ms 2904 KB Output is correct
3 Correct 4 ms 2908 KB Output is correct
4 Correct 3 ms 2908 KB Output is correct
5 Execution timed out 1573 ms 25180 KB Time limit exceeded
6 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Runtime error 1 ms 856 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Runtime error 1 ms 856 KB Execution killed with signal 6
3 Halted 0 ms 0 KB -