답안 #936010

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
936010	2024-02-29T23:08:43 Z	MinaRagy06	Joker (BOI20_joker)	C++17	6 / 100	182 ms	262144 KB

Joker

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

const int N = 200'005;
int par[N], sz[N], dep[N];
int gud;
array<int, 2> find(int u) {
	if (par[u] == u) {
		return {u, 0};
	}
	array<int, 2> v = find(par[u]);
	v[1] ^= dep[u];
	return v;
}
vector<pair<int*, int>> logs;
void assign(int *x, int y) {
	logs.push_back({x, *x});
	*x = y;
}
void join(int u, int v) {
	array<int, 2> pu = find(u), pv = find(v);
	if (pu[0] == pv[0]) {
		assign(&gud, gud && (dep[pv[0]] == (pv[1] ^ pu[1] ^ 1)));
		return;
	}
	if (sz[pu[0]] < sz[pv[0]]) {
		swap(u, v);
		swap(pu, pv);
	}
	assign(&par[pv[0]], pu[0]);
	assign(&dep[pv[0]], (pv[1] ^ pu[1] ^ 1));
	assign(&sz[pu[0]], sz[pu[0]] + sz[pv[0]]);
}
int main() {
	ios_base::sync_with_stdio(0), cin.tie(0);
	int n, m, q;
	cin >> n >> m >> q;
	array<int, 2> e[m];
	for (int i = 0; i < m; i++) {
		cin >> e[i][0] >> e[i][1];
	}
	while (q--) {
		int l, r;
		cin >> l >> r;
		l--, r--;
		for (int i = 1; i <= n; i++) {
			par[i] = i;
			sz[i] = 1;
			dep[i] = 0;
		}
		gud = 1;
		for (int i = 0; i < l; i++) {
			join(e[i][0], e[i][1]);
		}
		for (int i = r + 1; i < m; i++) {
			join(e[i][0], e[i][1]);
		}
		if (gud) {
			cout << "NO\n";
		} else {
			cout << "YES\n";
		}
	}
	return 0;
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2392 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	2 ms	3548 KB	Output is correct
8	Correct	2 ms	4568 KB	Output is correct
9	Correct	3 ms	4564 KB	Output is correct
10	Correct	2 ms	3548 KB	Output is correct
11	Correct	2 ms	4568 KB	Output is correct
12	Correct	2 ms	4568 KB	Output is correct
13	Correct	2 ms	3548 KB	Output is correct
14	Correct	3 ms	4568 KB	Output is correct
15	Correct	3 ms	4568 KB	Output is correct
16	Correct	2 ms	4568 KB	Output is correct
17	Correct	2 ms	3544 KB	Output is correct
18	Correct	2 ms	3548 KB	Output is correct
19	Correct	2 ms	3548 KB	Output is correct
20	Correct	2 ms	3548 KB	Output is correct
21	Correct	2 ms	4568 KB	Output is correct
22	Correct	3 ms	4568 KB	Output is correct
23	Correct	2 ms	3548 KB	Output is correct
24	Correct	3 ms	3544 KB	Output is correct
25	Correct	3 ms	4568 KB	Output is correct
26	Correct	2 ms	3548 KB	Output is correct
27	Correct	2 ms	3548 KB	Output is correct
28	Correct	2 ms	4564 KB	Output is correct

Subtask #2
0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2392 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	2 ms	3548 KB	Output is correct
8	Correct	2 ms	4568 KB	Output is correct
9	Correct	3 ms	4564 KB	Output is correct
10	Correct	2 ms	3548 KB	Output is correct
11	Correct	2 ms	4568 KB	Output is correct
12	Correct	2 ms	4568 KB	Output is correct
13	Correct	2 ms	3548 KB	Output is correct
14	Correct	3 ms	4568 KB	Output is correct
15	Correct	3 ms	4568 KB	Output is correct
16	Correct	2 ms	4568 KB	Output is correct
17	Correct	2 ms	3544 KB	Output is correct
18	Correct	2 ms	3548 KB	Output is correct
19	Correct	2 ms	3548 KB	Output is correct
20	Correct	2 ms	3548 KB	Output is correct
21	Correct	2 ms	4568 KB	Output is correct
22	Correct	3 ms	4568 KB	Output is correct
23	Correct	2 ms	3548 KB	Output is correct
24	Correct	3 ms	3544 KB	Output is correct
25	Correct	3 ms	4568 KB	Output is correct
26	Correct	2 ms	3548 KB	Output is correct
27	Correct	2 ms	3548 KB	Output is correct
28	Correct	2 ms	4564 KB	Output is correct
29	Correct	118 ms	135428 KB	Output is correct
30	Correct	109 ms	134736 KB	Output is correct
31	Correct	110 ms	135844 KB	Output is correct
32	Correct	94 ms	135056 KB	Output is correct
33	Correct	82 ms	134272 KB	Output is correct
34	Correct	121 ms	134292 KB	Output is correct
35	Correct	118 ms	133900 KB	Output is correct
36	Correct	92 ms	135324 KB	Output is correct
37	Runtime error	166 ms	262144 KB	Execution killed with signal 9
38	Halted	0 ms	0 KB	-

Subtask #3
0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Runtime error	182 ms	262144 KB	Execution killed with signal 9
4	Halted	0 ms	0 KB	-

Subtask #4
0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2392 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	2 ms	3548 KB	Output is correct
8	Correct	2 ms	4568 KB	Output is correct
9	Correct	3 ms	4564 KB	Output is correct
10	Correct	2 ms	3548 KB	Output is correct
11	Correct	2 ms	4568 KB	Output is correct
12	Correct	2 ms	4568 KB	Output is correct
13	Correct	2 ms	3548 KB	Output is correct
14	Correct	3 ms	4568 KB	Output is correct
15	Correct	3 ms	4568 KB	Output is correct
16	Correct	2 ms	4568 KB	Output is correct
17	Correct	2 ms	3544 KB	Output is correct
18	Correct	2 ms	3548 KB	Output is correct
19	Correct	2 ms	3548 KB	Output is correct
20	Correct	2 ms	3548 KB	Output is correct
21	Correct	2 ms	4568 KB	Output is correct
22	Correct	3 ms	4568 KB	Output is correct
23	Correct	2 ms	3548 KB	Output is correct
24	Correct	3 ms	3544 KB	Output is correct
25	Correct	3 ms	4568 KB	Output is correct
26	Correct	2 ms	3548 KB	Output is correct
27	Correct	2 ms	3548 KB	Output is correct
28	Correct	2 ms	4564 KB	Output is correct
29	Runtime error	182 ms	262144 KB	Execution killed with signal 9
30	Halted	0 ms	0 KB	-

Subtask #5
0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2392 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	2 ms	3548 KB	Output is correct
8	Correct	2 ms	4568 KB	Output is correct
9	Correct	3 ms	4564 KB	Output is correct
10	Correct	2 ms	3548 KB	Output is correct
11	Correct	2 ms	4568 KB	Output is correct
12	Correct	2 ms	4568 KB	Output is correct
13	Correct	2 ms	3548 KB	Output is correct
14	Correct	3 ms	4568 KB	Output is correct
15	Correct	3 ms	4568 KB	Output is correct
16	Correct	2 ms	4568 KB	Output is correct
17	Correct	2 ms	3544 KB	Output is correct
18	Correct	2 ms	3548 KB	Output is correct
19	Correct	2 ms	3548 KB	Output is correct
20	Correct	2 ms	3548 KB	Output is correct
21	Correct	2 ms	4568 KB	Output is correct
22	Correct	3 ms	4568 KB	Output is correct
23	Correct	2 ms	3548 KB	Output is correct
24	Correct	3 ms	3544 KB	Output is correct
25	Correct	3 ms	4568 KB	Output is correct
26	Correct	2 ms	3548 KB	Output is correct
27	Correct	2 ms	3548 KB	Output is correct
28	Correct	2 ms	4564 KB	Output is correct
29	Correct	118 ms	135428 KB	Output is correct
30	Correct	109 ms	134736 KB	Output is correct
31	Correct	110 ms	135844 KB	Output is correct
32	Correct	94 ms	135056 KB	Output is correct
33	Correct	82 ms	134272 KB	Output is correct
34	Correct	121 ms	134292 KB	Output is correct
35	Correct	118 ms	133900 KB	Output is correct
36	Correct	92 ms	135324 KB	Output is correct
37	Runtime error	166 ms	262144 KB	Execution killed with signal 9
38	Halted	0 ms	0 KB	-

Subtask #6
0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	2392 KB	Output is correct
6	Correct	1 ms	2396 KB	Output is correct
7	Correct	2 ms	3548 KB	Output is correct
8	Correct	2 ms	4568 KB	Output is correct
9	Correct	3 ms	4564 KB	Output is correct
10	Correct	2 ms	3548 KB	Output is correct
11	Correct	2 ms	4568 KB	Output is correct
12	Correct	2 ms	4568 KB	Output is correct
13	Correct	2 ms	3548 KB	Output is correct
14	Correct	3 ms	4568 KB	Output is correct
15	Correct	3 ms	4568 KB	Output is correct
16	Correct	2 ms	4568 KB	Output is correct
17	Correct	2 ms	3544 KB	Output is correct
18	Correct	2 ms	3548 KB	Output is correct
19	Correct	2 ms	3548 KB	Output is correct
20	Correct	2 ms	3548 KB	Output is correct
21	Correct	2 ms	4568 KB	Output is correct
22	Correct	3 ms	4568 KB	Output is correct
23	Correct	2 ms	3548 KB	Output is correct
24	Correct	3 ms	3544 KB	Output is correct
25	Correct	3 ms	4568 KB	Output is correct
26	Correct	2 ms	3548 KB	Output is correct
27	Correct	2 ms	3548 KB	Output is correct
28	Correct	2 ms	4564 KB	Output is correct
29	Correct	118 ms	135428 KB	Output is correct
30	Correct	109 ms	134736 KB	Output is correct
31	Correct	110 ms	135844 KB	Output is correct
32	Correct	94 ms	135056 KB	Output is correct
33	Correct	82 ms	134272 KB	Output is correct
34	Correct	121 ms	134292 KB	Output is correct
35	Correct	118 ms	133900 KB	Output is correct
36	Correct	92 ms	135324 KB	Output is correct
37	Runtime error	166 ms	262144 KB	Execution killed with signal 9
38	Halted	0 ms	0 KB	-

답안 #936010

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 0 / 8.0

Subtask #3 0 / 25.0

Subtask #4 0 / 10.0

Subtask #5 0 / 22.0

Subtask #6 0 / 29.0

Subtask #1
6.0 / 6.0

Subtask #2
0 / 8.0

Subtask #3
0 / 25.0

Subtask #4
0 / 10.0

Subtask #5
0 / 22.0

Subtask #6
0 / 29.0