Submission #930520

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
930520	2024-02-20T05:30:28 Z	Jawad_Akbar_JJ	Joker (BOI20_joker)	C++17	14 / 100	2000 ms	19024 KB

Joker

#pragma GCC optimize("O2")
#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#include <iostream>
#include <vector>

using namespace std;
const int N = (1<<18) + 1;
vector<pair<int,int>> nei[N];
int seen[N],h[N];
int cur = 1,l,r;
bool odd;


void dfs(int u,int k = 1){
	seen[u] = cur;
	h[u] = k;
	for (auto [i,j] : nei[u]){
		if (j <= r and j >= l)
			continue;
		if (seen[i] == cur){
			if ((h[u] - h[i]) % 2 == 0)
				odd = true;
		}
		else
			dfs(i,k+1);
	}
}

void sub1(int n,int m,int q){
	for (int i=1;i<=m;i++){
		int a,b;
		scanf("%d%d",&a,&b);
		nei[a].push_back({b,i});
		nei[b].push_back({a,i});
	}

	while (q--){
		scanf("%d%d",&l,&r);
		odd = false;
		for (int i=1;i<=n;i++)
			if (seen[i]!=cur)
				dfs(i);
		cur++;
		if (odd)
			printf("YES\n");
		else
			printf("NO\n");
	}
	exit(0);
}


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

	if (min(n,min(m,q)) <= 2000)
		sub1(n,m,q);

	
}

Compilation message

Joker.cpp: In function 'void sub1(int, int, int)':
Joker.cpp:33:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |   scanf("%d%d",&a,&b);
      |   ~~~~~^~~~~~~~~~~~~~
Joker.cpp:39:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |   scanf("%d%d",&l,&r);
      |   ~~~~~^~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	8280 KB	Output is correct
2	Correct	4 ms	8284 KB	Output is correct
3	Correct	4 ms	8308 KB	Output is correct
4	Correct	3 ms	8284 KB	Output is correct
5	Correct	7 ms	8284 KB	Output is correct
6	Correct	3 ms	8284 KB	Output is correct
7	Correct	3 ms	8284 KB	Output is correct
8	Correct	3 ms	8284 KB	Output is correct
9	Correct	3 ms	8284 KB	Output is correct
10	Correct	3 ms	8284 KB	Output is correct
11	Correct	3 ms	8284 KB	Output is correct
12	Correct	3 ms	8284 KB	Output is correct
13	Correct	3 ms	8284 KB	Output is correct
14	Correct	4 ms	8284 KB	Output is correct
15	Correct	3 ms	8284 KB	Output is correct
16	Correct	3 ms	8284 KB	Output is correct
17	Correct	4 ms	8284 KB	Output is correct
18	Correct	3 ms	8364 KB	Output is correct
19	Correct	4 ms	8284 KB	Output is correct
20	Correct	3 ms	8284 KB	Output is correct
21	Correct	3 ms	8284 KB	Output is correct
22	Correct	4 ms	8284 KB	Output is correct
23	Correct	3 ms	8372 KB	Output is correct
24	Correct	3 ms	8284 KB	Output is correct
25	Correct	3 ms	8284 KB	Output is correct
26	Correct	3 ms	8280 KB	Output is correct
27	Correct	3 ms	8284 KB	Output is correct
28	Correct	4 ms	8280 KB	Output is correct

Subtask #2
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	8280 KB	Output is correct
2	Correct	4 ms	8284 KB	Output is correct
3	Correct	4 ms	8308 KB	Output is correct
4	Correct	3 ms	8284 KB	Output is correct
5	Correct	7 ms	8284 KB	Output is correct
6	Correct	3 ms	8284 KB	Output is correct
7	Correct	3 ms	8284 KB	Output is correct
8	Correct	3 ms	8284 KB	Output is correct
9	Correct	3 ms	8284 KB	Output is correct
10	Correct	3 ms	8284 KB	Output is correct
11	Correct	3 ms	8284 KB	Output is correct
12	Correct	3 ms	8284 KB	Output is correct
13	Correct	3 ms	8284 KB	Output is correct
14	Correct	4 ms	8284 KB	Output is correct
15	Correct	3 ms	8284 KB	Output is correct
16	Correct	3 ms	8284 KB	Output is correct
17	Correct	4 ms	8284 KB	Output is correct
18	Correct	3 ms	8364 KB	Output is correct
19	Correct	4 ms	8284 KB	Output is correct
20	Correct	3 ms	8284 KB	Output is correct
21	Correct	3 ms	8284 KB	Output is correct
22	Correct	4 ms	8284 KB	Output is correct
23	Correct	3 ms	8372 KB	Output is correct
24	Correct	3 ms	8284 KB	Output is correct
25	Correct	3 ms	8284 KB	Output is correct
26	Correct	3 ms	8280 KB	Output is correct
27	Correct	3 ms	8284 KB	Output is correct
28	Correct	4 ms	8280 KB	Output is correct
29	Correct	53 ms	8500 KB	Output is correct
30	Correct	89 ms	8540 KB	Output is correct
31	Correct	97 ms	8540 KB	Output is correct
32	Correct	79 ms	8540 KB	Output is correct
33	Correct	60 ms	8540 KB	Output is correct
34	Correct	95 ms	8556 KB	Output is correct
35	Correct	97 ms	8548 KB	Output is correct
36	Correct	27 ms	8536 KB	Output is correct
37	Correct	59 ms	8540 KB	Output is correct
38	Correct	58 ms	8736 KB	Output is correct
39	Correct	64 ms	8572 KB	Output is correct
40	Correct	67 ms	8792 KB	Output is correct
41	Correct	65 ms	8556 KB	Output is correct
42	Correct	68 ms	8564 KB	Output is correct
43	Correct	73 ms	8536 KB	Output is correct
44	Correct	85 ms	8548 KB	Output is correct
45	Correct	99 ms	8792 KB	Output is correct
46	Correct	99 ms	8540 KB	Output is correct
47	Correct	63 ms	8540 KB	Output is correct
48	Correct	69 ms	8548 KB	Output is correct
49	Correct	77 ms	8556 KB	Output is correct
50	Correct	86 ms	8536 KB	Output is correct
51	Correct	64 ms	8536 KB	Output is correct
52	Correct	77 ms	8536 KB	Output is correct
53	Correct	83 ms	8804 KB	Output is correct
54	Correct	99 ms	8560 KB	Output is correct

Subtask #3
0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	8280 KB	Output is correct
2	Correct	4 ms	8284 KB	Output is correct
3	Incorrect	3 ms	8284 KB	Output isn't correct
4	Halted	0 ms	0 KB	-

Subtask #4
0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	8280 KB	Output is correct
2	Correct	4 ms	8284 KB	Output is correct
3	Correct	4 ms	8308 KB	Output is correct
4	Correct	3 ms	8284 KB	Output is correct
5	Correct	7 ms	8284 KB	Output is correct
6	Correct	3 ms	8284 KB	Output is correct
7	Correct	3 ms	8284 KB	Output is correct
8	Correct	3 ms	8284 KB	Output is correct
9	Correct	3 ms	8284 KB	Output is correct
10	Correct	3 ms	8284 KB	Output is correct
11	Correct	3 ms	8284 KB	Output is correct
12	Correct	3 ms	8284 KB	Output is correct
13	Correct	3 ms	8284 KB	Output is correct
14	Correct	4 ms	8284 KB	Output is correct
15	Correct	3 ms	8284 KB	Output is correct
16	Correct	3 ms	8284 KB	Output is correct
17	Correct	4 ms	8284 KB	Output is correct
18	Correct	3 ms	8364 KB	Output is correct
19	Correct	4 ms	8284 KB	Output is correct
20	Correct	3 ms	8284 KB	Output is correct
21	Correct	3 ms	8284 KB	Output is correct
22	Correct	4 ms	8284 KB	Output is correct
23	Correct	3 ms	8372 KB	Output is correct
24	Correct	3 ms	8284 KB	Output is correct
25	Correct	3 ms	8284 KB	Output is correct
26	Correct	3 ms	8280 KB	Output is correct
27	Correct	3 ms	8284 KB	Output is correct
28	Correct	4 ms	8280 KB	Output is correct
29	Incorrect	3 ms	8284 KB	Output isn't correct
30	Halted	0 ms	0 KB	-

Subtask #5
0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	8280 KB	Output is correct
2	Correct	4 ms	8284 KB	Output is correct
3	Correct	4 ms	8308 KB	Output is correct
4	Correct	3 ms	8284 KB	Output is correct
5	Correct	7 ms	8284 KB	Output is correct
6	Correct	3 ms	8284 KB	Output is correct
7	Correct	3 ms	8284 KB	Output is correct
8	Correct	3 ms	8284 KB	Output is correct
9	Correct	3 ms	8284 KB	Output is correct
10	Correct	3 ms	8284 KB	Output is correct
11	Correct	3 ms	8284 KB	Output is correct
12	Correct	3 ms	8284 KB	Output is correct
13	Correct	3 ms	8284 KB	Output is correct
14	Correct	4 ms	8284 KB	Output is correct
15	Correct	3 ms	8284 KB	Output is correct
16	Correct	3 ms	8284 KB	Output is correct
17	Correct	4 ms	8284 KB	Output is correct
18	Correct	3 ms	8364 KB	Output is correct
19	Correct	4 ms	8284 KB	Output is correct
20	Correct	3 ms	8284 KB	Output is correct
21	Correct	3 ms	8284 KB	Output is correct
22	Correct	4 ms	8284 KB	Output is correct
23	Correct	3 ms	8372 KB	Output is correct
24	Correct	3 ms	8284 KB	Output is correct
25	Correct	3 ms	8284 KB	Output is correct
26	Correct	3 ms	8280 KB	Output is correct
27	Correct	3 ms	8284 KB	Output is correct
28	Correct	4 ms	8280 KB	Output is correct
29	Correct	53 ms	8500 KB	Output is correct
30	Correct	89 ms	8540 KB	Output is correct
31	Correct	97 ms	8540 KB	Output is correct
32	Correct	79 ms	8540 KB	Output is correct
33	Correct	60 ms	8540 KB	Output is correct
34	Correct	95 ms	8556 KB	Output is correct
35	Correct	97 ms	8548 KB	Output is correct
36	Correct	27 ms	8536 KB	Output is correct
37	Correct	59 ms	8540 KB	Output is correct
38	Correct	58 ms	8736 KB	Output is correct
39	Correct	64 ms	8572 KB	Output is correct
40	Correct	67 ms	8792 KB	Output is correct
41	Correct	65 ms	8556 KB	Output is correct
42	Correct	68 ms	8564 KB	Output is correct
43	Correct	73 ms	8536 KB	Output is correct
44	Correct	85 ms	8548 KB	Output is correct
45	Correct	99 ms	8792 KB	Output is correct
46	Correct	99 ms	8540 KB	Output is correct
47	Correct	63 ms	8540 KB	Output is correct
48	Correct	69 ms	8548 KB	Output is correct
49	Correct	77 ms	8556 KB	Output is correct
50	Correct	86 ms	8536 KB	Output is correct
51	Correct	64 ms	8536 KB	Output is correct
52	Correct	77 ms	8536 KB	Output is correct
53	Correct	83 ms	8804 KB	Output is correct
54	Correct	99 ms	8560 KB	Output is correct
55	Execution timed out	2007 ms	19024 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

Subtask #6
0 / 29.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	8280 KB	Output is correct
2	Correct	4 ms	8284 KB	Output is correct
3	Correct	4 ms	8308 KB	Output is correct
4	Correct	3 ms	8284 KB	Output is correct
5	Correct	7 ms	8284 KB	Output is correct
6	Correct	3 ms	8284 KB	Output is correct
7	Correct	3 ms	8284 KB	Output is correct
8	Correct	3 ms	8284 KB	Output is correct
9	Correct	3 ms	8284 KB	Output is correct
10	Correct	3 ms	8284 KB	Output is correct
11	Correct	3 ms	8284 KB	Output is correct
12	Correct	3 ms	8284 KB	Output is correct
13	Correct	3 ms	8284 KB	Output is correct
14	Correct	4 ms	8284 KB	Output is correct
15	Correct	3 ms	8284 KB	Output is correct
16	Correct	3 ms	8284 KB	Output is correct
17	Correct	4 ms	8284 KB	Output is correct
18	Correct	3 ms	8364 KB	Output is correct
19	Correct	4 ms	8284 KB	Output is correct
20	Correct	3 ms	8284 KB	Output is correct
21	Correct	3 ms	8284 KB	Output is correct
22	Correct	4 ms	8284 KB	Output is correct
23	Correct	3 ms	8372 KB	Output is correct
24	Correct	3 ms	8284 KB	Output is correct
25	Correct	3 ms	8284 KB	Output is correct
26	Correct	3 ms	8280 KB	Output is correct
27	Correct	3 ms	8284 KB	Output is correct
28	Correct	4 ms	8280 KB	Output is correct
29	Correct	53 ms	8500 KB	Output is correct
30	Correct	89 ms	8540 KB	Output is correct
31	Correct	97 ms	8540 KB	Output is correct
32	Correct	79 ms	8540 KB	Output is correct
33	Correct	60 ms	8540 KB	Output is correct
34	Correct	95 ms	8556 KB	Output is correct
35	Correct	97 ms	8548 KB	Output is correct
36	Correct	27 ms	8536 KB	Output is correct
37	Correct	59 ms	8540 KB	Output is correct
38	Correct	58 ms	8736 KB	Output is correct
39	Correct	64 ms	8572 KB	Output is correct
40	Correct	67 ms	8792 KB	Output is correct
41	Correct	65 ms	8556 KB	Output is correct
42	Correct	68 ms	8564 KB	Output is correct
43	Correct	73 ms	8536 KB	Output is correct
44	Correct	85 ms	8548 KB	Output is correct
45	Correct	99 ms	8792 KB	Output is correct
46	Correct	99 ms	8540 KB	Output is correct
47	Correct	63 ms	8540 KB	Output is correct
48	Correct	69 ms	8548 KB	Output is correct
49	Correct	77 ms	8556 KB	Output is correct
50	Correct	86 ms	8536 KB	Output is correct
51	Correct	64 ms	8536 KB	Output is correct
52	Correct	77 ms	8536 KB	Output is correct
53	Correct	83 ms	8804 KB	Output is correct
54	Correct	99 ms	8560 KB	Output is correct
55	Incorrect	3 ms	8284 KB	Output isn't correct
56	Halted	0 ms	0 KB	-

Submission #930520

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