Submission #289874

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
289874	2020-09-03T07:46:32 Z	someone_aa	Joker (BOI20_joker)	C++17	14 / 100	2000 ms	13304 KB

Joker

#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define mp make_pair
#define pii pair<int,int>
using namespace std;
const int maxn = 200100;
ll n, m, q;

vector<pii>g[maxn];

bool visited[maxn];
int color[maxn];

bool check(int l, int r) {
	memset(visited, false,sizeof(visited));
	memset(color, 0, sizeof(color));

	bool cycle = false;

	for(int i=1;i<=n;i++) {
		if(!visited[i]) {
			visited[i] = true;
			color[i] = 1;

			queue<int>q;
			q.push(i);

			while(!q.empty()) {
				int curr = q.front();
				q.pop();

				for(auto i:g[curr]) {
					if(l <= i.second && i.second <= r) continue;

					if(!visited[i.first]) {
						visited[i.first] = true;
						color[i.first] = 3 - color[curr];
						q.push(i.first);
					}
					else {
						if(color[i.first] == color[curr]) cycle = true;
					}
				}
			}
		}
	}

	return cycle;
}

int main() {
	cin>>n>>m>>q;

	int u, v;
	for(int i=1;i<=m;i++) {
		cin>>u>>v;
		g[u].pb(mp(v, i));
		g[v].pb(mp(u, i));
	}

	int l, r;
	while(q--) {
		cin>>l>>r;

		if(check(l, r)) cout<<"YES\n";
		else cout<<"NO\n";
	}
}

Subtask #1
6.0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	6016 KB	Output is correct
2	Correct	5 ms	6048 KB	Output is correct
3	Correct	4 ms	6016 KB	Output is correct
4	Correct	4 ms	6016 KB	Output is correct
5	Correct	5 ms	6016 KB	Output is correct
6	Correct	5 ms	6016 KB	Output is correct
7	Correct	17 ms	6016 KB	Output is correct
8	Correct	15 ms	6016 KB	Output is correct
9	Correct	15 ms	6016 KB	Output is correct
10	Correct	14 ms	6016 KB	Output is correct
11	Correct	15 ms	5964 KB	Output is correct
12	Correct	15 ms	6016 KB	Output is correct
13	Correct	14 ms	6016 KB	Output is correct
14	Correct	15 ms	6016 KB	Output is correct
15	Correct	15 ms	6016 KB	Output is correct
16	Correct	15 ms	6016 KB	Output is correct
17	Correct	14 ms	6016 KB	Output is correct
18	Correct	17 ms	6016 KB	Output is correct
19	Correct	17 ms	6016 KB	Output is correct
20	Correct	16 ms	6016 KB	Output is correct
21	Correct	16 ms	6016 KB	Output is correct
22	Correct	14 ms	6016 KB	Output is correct
23	Correct	14 ms	6016 KB	Output is correct
24	Correct	13 ms	6016 KB	Output is correct
25	Correct	14 ms	6016 KB	Output is correct
26	Correct	17 ms	6016 KB	Output is correct
27	Correct	16 ms	6016 KB	Output is correct
28	Correct	14 ms	6016 KB	Output is correct

Subtask #2
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	6016 KB	Output is correct
2	Correct	5 ms	6048 KB	Output is correct
3	Correct	4 ms	6016 KB	Output is correct
4	Correct	4 ms	6016 KB	Output is correct
5	Correct	5 ms	6016 KB	Output is correct
6	Correct	5 ms	6016 KB	Output is correct
7	Correct	17 ms	6016 KB	Output is correct
8	Correct	15 ms	6016 KB	Output is correct
9	Correct	15 ms	6016 KB	Output is correct
10	Correct	14 ms	6016 KB	Output is correct
11	Correct	15 ms	5964 KB	Output is correct
12	Correct	15 ms	6016 KB	Output is correct
13	Correct	14 ms	6016 KB	Output is correct
14	Correct	15 ms	6016 KB	Output is correct
15	Correct	15 ms	6016 KB	Output is correct
16	Correct	15 ms	6016 KB	Output is correct
17	Correct	14 ms	6016 KB	Output is correct
18	Correct	17 ms	6016 KB	Output is correct
19	Correct	17 ms	6016 KB	Output is correct
20	Correct	16 ms	6016 KB	Output is correct
21	Correct	16 ms	6016 KB	Output is correct
22	Correct	14 ms	6016 KB	Output is correct
23	Correct	14 ms	6016 KB	Output is correct
24	Correct	13 ms	6016 KB	Output is correct
25	Correct	14 ms	6016 KB	Output is correct
26	Correct	17 ms	6016 KB	Output is correct
27	Correct	16 ms	6016 KB	Output is correct
28	Correct	14 ms	6016 KB	Output is correct
29	Correct	390 ms	6100 KB	Output is correct
30	Correct	593 ms	6148 KB	Output is correct
31	Correct	422 ms	6156 KB	Output is correct
32	Correct	273 ms	6100 KB	Output is correct
33	Correct	222 ms	6144 KB	Output is correct
34	Correct	560 ms	6144 KB	Output is correct
35	Correct	535 ms	6144 KB	Output is correct
36	Correct	208 ms	6016 KB	Output is correct
37	Correct	351 ms	6144 KB	Output is correct
38	Correct	301 ms	6148 KB	Output is correct
39	Correct	489 ms	6152 KB	Output is correct
40	Correct	265 ms	6264 KB	Output is correct
41	Correct	275 ms	6136 KB	Output is correct
42	Correct	282 ms	6160 KB	Output is correct
43	Correct	179 ms	6144 KB	Output is correct
44	Correct	220 ms	6152 KB	Output is correct
45	Correct	332 ms	6152 KB	Output is correct
46	Correct	431 ms	6144 KB	Output is correct
47	Correct	219 ms	6264 KB	Output is correct
48	Correct	244 ms	6144 KB	Output is correct
49	Correct	393 ms	6148 KB	Output is correct
50	Correct	538 ms	6152 KB	Output is correct
51	Correct	208 ms	6144 KB	Output is correct
52	Correct	268 ms	6144 KB	Output is correct
53	Correct	421 ms	6264 KB	Output is correct
54	Correct	656 ms	6136 KB	Output is correct

Subtask #3
0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	6016 KB	Output is correct
2	Correct	5 ms	6048 KB	Output is correct
3	Execution timed out	2059 ms	13304 KB	Time limit exceeded
4	Halted	0 ms	0 KB	-

Subtask #4
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	6016 KB	Output is correct
2	Correct	5 ms	6048 KB	Output is correct
3	Correct	4 ms	6016 KB	Output is correct
4	Correct	4 ms	6016 KB	Output is correct
5	Correct	5 ms	6016 KB	Output is correct
6	Correct	5 ms	6016 KB	Output is correct
7	Correct	17 ms	6016 KB	Output is correct
8	Correct	15 ms	6016 KB	Output is correct
9	Correct	15 ms	6016 KB	Output is correct
10	Correct	14 ms	6016 KB	Output is correct
11	Correct	15 ms	5964 KB	Output is correct
12	Correct	15 ms	6016 KB	Output is correct
13	Correct	14 ms	6016 KB	Output is correct
14	Correct	15 ms	6016 KB	Output is correct
15	Correct	15 ms	6016 KB	Output is correct
16	Correct	15 ms	6016 KB	Output is correct
17	Correct	14 ms	6016 KB	Output is correct
18	Correct	17 ms	6016 KB	Output is correct
19	Correct	17 ms	6016 KB	Output is correct
20	Correct	16 ms	6016 KB	Output is correct
21	Correct	16 ms	6016 KB	Output is correct
22	Correct	14 ms	6016 KB	Output is correct
23	Correct	14 ms	6016 KB	Output is correct
24	Correct	13 ms	6016 KB	Output is correct
25	Correct	14 ms	6016 KB	Output is correct
26	Correct	17 ms	6016 KB	Output is correct
27	Correct	16 ms	6016 KB	Output is correct
28	Correct	14 ms	6016 KB	Output is correct
29	Execution timed out	2059 ms	13304 KB	Time limit exceeded
30	Halted	0 ms	0 KB	-

Subtask #5
0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	6016 KB	Output is correct
2	Correct	5 ms	6048 KB	Output is correct
3	Correct	4 ms	6016 KB	Output is correct
4	Correct	4 ms	6016 KB	Output is correct
5	Correct	5 ms	6016 KB	Output is correct
6	Correct	5 ms	6016 KB	Output is correct
7	Correct	17 ms	6016 KB	Output is correct
8	Correct	15 ms	6016 KB	Output is correct
9	Correct	15 ms	6016 KB	Output is correct
10	Correct	14 ms	6016 KB	Output is correct
11	Correct	15 ms	5964 KB	Output is correct
12	Correct	15 ms	6016 KB	Output is correct
13	Correct	14 ms	6016 KB	Output is correct
14	Correct	15 ms	6016 KB	Output is correct
15	Correct	15 ms	6016 KB	Output is correct
16	Correct	15 ms	6016 KB	Output is correct
17	Correct	14 ms	6016 KB	Output is correct
18	Correct	17 ms	6016 KB	Output is correct
19	Correct	17 ms	6016 KB	Output is correct
20	Correct	16 ms	6016 KB	Output is correct
21	Correct	16 ms	6016 KB	Output is correct
22	Correct	14 ms	6016 KB	Output is correct
23	Correct	14 ms	6016 KB	Output is correct
24	Correct	13 ms	6016 KB	Output is correct
25	Correct	14 ms	6016 KB	Output is correct
26	Correct	17 ms	6016 KB	Output is correct
27	Correct	16 ms	6016 KB	Output is correct
28	Correct	14 ms	6016 KB	Output is correct
29	Correct	390 ms	6100 KB	Output is correct
30	Correct	593 ms	6148 KB	Output is correct
31	Correct	422 ms	6156 KB	Output is correct
32	Correct	273 ms	6100 KB	Output is correct
33	Correct	222 ms	6144 KB	Output is correct
34	Correct	560 ms	6144 KB	Output is correct
35	Correct	535 ms	6144 KB	Output is correct
36	Correct	208 ms	6016 KB	Output is correct
37	Correct	351 ms	6144 KB	Output is correct
38	Correct	301 ms	6148 KB	Output is correct
39	Correct	489 ms	6152 KB	Output is correct
40	Correct	265 ms	6264 KB	Output is correct
41	Correct	275 ms	6136 KB	Output is correct
42	Correct	282 ms	6160 KB	Output is correct
43	Correct	179 ms	6144 KB	Output is correct
44	Correct	220 ms	6152 KB	Output is correct
45	Correct	332 ms	6152 KB	Output is correct
46	Correct	431 ms	6144 KB	Output is correct
47	Correct	219 ms	6264 KB	Output is correct
48	Correct	244 ms	6144 KB	Output is correct
49	Correct	393 ms	6148 KB	Output is correct
50	Correct	538 ms	6152 KB	Output is correct
51	Correct	208 ms	6144 KB	Output is correct
52	Correct	268 ms	6144 KB	Output is correct
53	Correct	421 ms	6264 KB	Output is correct
54	Correct	656 ms	6136 KB	Output is correct
55	Execution timed out	2033 ms	13104 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

Subtask #6
0 / 29.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	6016 KB	Output is correct
2	Correct	5 ms	6048 KB	Output is correct
3	Correct	4 ms	6016 KB	Output is correct
4	Correct	4 ms	6016 KB	Output is correct
5	Correct	5 ms	6016 KB	Output is correct
6	Correct	5 ms	6016 KB	Output is correct
7	Correct	17 ms	6016 KB	Output is correct
8	Correct	15 ms	6016 KB	Output is correct
9	Correct	15 ms	6016 KB	Output is correct
10	Correct	14 ms	6016 KB	Output is correct
11	Correct	15 ms	5964 KB	Output is correct
12	Correct	15 ms	6016 KB	Output is correct
13	Correct	14 ms	6016 KB	Output is correct
14	Correct	15 ms	6016 KB	Output is correct
15	Correct	15 ms	6016 KB	Output is correct
16	Correct	15 ms	6016 KB	Output is correct
17	Correct	14 ms	6016 KB	Output is correct
18	Correct	17 ms	6016 KB	Output is correct
19	Correct	17 ms	6016 KB	Output is correct
20	Correct	16 ms	6016 KB	Output is correct
21	Correct	16 ms	6016 KB	Output is correct
22	Correct	14 ms	6016 KB	Output is correct
23	Correct	14 ms	6016 KB	Output is correct
24	Correct	13 ms	6016 KB	Output is correct
25	Correct	14 ms	6016 KB	Output is correct
26	Correct	17 ms	6016 KB	Output is correct
27	Correct	16 ms	6016 KB	Output is correct
28	Correct	14 ms	6016 KB	Output is correct
29	Correct	390 ms	6100 KB	Output is correct
30	Correct	593 ms	6148 KB	Output is correct
31	Correct	422 ms	6156 KB	Output is correct
32	Correct	273 ms	6100 KB	Output is correct
33	Correct	222 ms	6144 KB	Output is correct
34	Correct	560 ms	6144 KB	Output is correct
35	Correct	535 ms	6144 KB	Output is correct
36	Correct	208 ms	6016 KB	Output is correct
37	Correct	351 ms	6144 KB	Output is correct
38	Correct	301 ms	6148 KB	Output is correct
39	Correct	489 ms	6152 KB	Output is correct
40	Correct	265 ms	6264 KB	Output is correct
41	Correct	275 ms	6136 KB	Output is correct
42	Correct	282 ms	6160 KB	Output is correct
43	Correct	179 ms	6144 KB	Output is correct
44	Correct	220 ms	6152 KB	Output is correct
45	Correct	332 ms	6152 KB	Output is correct
46	Correct	431 ms	6144 KB	Output is correct
47	Correct	219 ms	6264 KB	Output is correct
48	Correct	244 ms	6144 KB	Output is correct
49	Correct	393 ms	6148 KB	Output is correct
50	Correct	538 ms	6152 KB	Output is correct
51	Correct	208 ms	6144 KB	Output is correct
52	Correct	268 ms	6144 KB	Output is correct
53	Correct	421 ms	6264 KB	Output is correct
54	Correct	656 ms	6136 KB	Output is correct
55	Execution timed out	2059 ms	13304 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

Submission #289874

Compilation message

Subtask #1 6.0 / 6.0

Subtask #2 8.0 / 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
8.0 / 8.0

Subtask #3
0 / 25.0

Subtask #4
0 / 10.0

Subtask #5
0 / 22.0

Subtask #6
0 / 29.0