Submission #930521

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
930521	2024-02-20T05:31:44 Z	Jawad_Akbar_JJ	Joker (BOI20_joker)	C++17	14 / 100	2000 ms	19028 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;
				return;
			}
		}
		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:35:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 |   scanf("%d%d",&a,&b);
      |   ~~~~~^~~~~~~~~~~~~~
Joker.cpp:41:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |   scanf("%d%d",&l,&r);
      |   ~~~~~^~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	8284 KB	Output is correct
2	Correct	3 ms	8284 KB	Output is correct
3	Correct	3 ms	8284 KB	Output is correct
4	Correct	3 ms	8284 KB	Output is correct
5	Correct	3 ms	8284 KB	Output is correct
6	Correct	3 ms	8284 KB	Output is correct
7	Correct	4 ms	8284 KB	Output is correct
8	Correct	3 ms	8728 KB	Output is correct
9	Correct	4 ms	8284 KB	Output is correct
10	Correct	3 ms	8280 KB	Output is correct
11	Correct	3 ms	8284 KB	Output is correct
12	Correct	4 ms	8284 KB	Output is correct
13	Correct	3 ms	8284 KB	Output is correct
14	Correct	3 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	3 ms	8284 KB	Output is correct
18	Correct	3 ms	8284 KB	Output is correct
19	Correct	4 ms	8284 KB	Output is correct
20	Correct	3 ms	8472 KB	Output is correct
21	Correct	3 ms	8280 KB	Output is correct
22	Correct	3 ms	8280 KB	Output is correct
23	Correct	3 ms	8476 KB	Output is correct
24	Correct	4 ms	8284 KB	Output is correct
25	Correct	3 ms	8280 KB	Output is correct
26	Correct	4 ms	8280 KB	Output is correct
27	Correct	3 ms	8284 KB	Output is correct
28	Correct	3 ms	8284 KB	Output is correct

Subtask #2
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	8284 KB	Output is correct
2	Correct	3 ms	8284 KB	Output is correct
3	Correct	3 ms	8284 KB	Output is correct
4	Correct	3 ms	8284 KB	Output is correct
5	Correct	3 ms	8284 KB	Output is correct
6	Correct	3 ms	8284 KB	Output is correct
7	Correct	4 ms	8284 KB	Output is correct
8	Correct	3 ms	8728 KB	Output is correct
9	Correct	4 ms	8284 KB	Output is correct
10	Correct	3 ms	8280 KB	Output is correct
11	Correct	3 ms	8284 KB	Output is correct
12	Correct	4 ms	8284 KB	Output is correct
13	Correct	3 ms	8284 KB	Output is correct
14	Correct	3 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	3 ms	8284 KB	Output is correct
18	Correct	3 ms	8284 KB	Output is correct
19	Correct	4 ms	8284 KB	Output is correct
20	Correct	3 ms	8472 KB	Output is correct
21	Correct	3 ms	8280 KB	Output is correct
22	Correct	3 ms	8280 KB	Output is correct
23	Correct	3 ms	8476 KB	Output is correct
24	Correct	4 ms	8284 KB	Output is correct
25	Correct	3 ms	8280 KB	Output is correct
26	Correct	4 ms	8280 KB	Output is correct
27	Correct	3 ms	8284 KB	Output is correct
28	Correct	3 ms	8284 KB	Output is correct
29	Correct	51 ms	8536 KB	Output is correct
30	Correct	91 ms	8536 KB	Output is correct
31	Correct	83 ms	8536 KB	Output is correct
32	Correct	63 ms	8536 KB	Output is correct
33	Correct	41 ms	8536 KB	Output is correct
34	Correct	90 ms	8540 KB	Output is correct
35	Correct	103 ms	8564 KB	Output is correct
36	Correct	24 ms	8572 KB	Output is correct
37	Correct	55 ms	8540 KB	Output is correct
38	Correct	46 ms	8556 KB	Output is correct
39	Correct	62 ms	8532 KB	Output is correct
40	Correct	55 ms	8556 KB	Output is correct
41	Correct	56 ms	8540 KB	Output is correct
42	Correct	57 ms	8568 KB	Output is correct
43	Correct	39 ms	8540 KB	Output is correct
44	Correct	66 ms	8536 KB	Output is correct
45	Correct	92 ms	8540 KB	Output is correct
46	Correct	96 ms	8540 KB	Output is correct
47	Correct	52 ms	8540 KB	Output is correct
48	Correct	61 ms	8472 KB	Output is correct
49	Correct	72 ms	8540 KB	Output is correct
50	Correct	100 ms	8792 KB	Output is correct
51	Correct	50 ms	8536 KB	Output is correct
52	Correct	63 ms	8540 KB	Output is correct
53	Correct	77 ms	8536 KB	Output is correct
54	Correct	93 ms	8536 KB	Output is correct

Subtask #3
0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	8284 KB	Output is correct
2	Correct	3 ms	8284 KB	Output is correct
3	Incorrect	2 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	8284 KB	Output is correct
2	Correct	3 ms	8284 KB	Output is correct
3	Correct	3 ms	8284 KB	Output is correct
4	Correct	3 ms	8284 KB	Output is correct
5	Correct	3 ms	8284 KB	Output is correct
6	Correct	3 ms	8284 KB	Output is correct
7	Correct	4 ms	8284 KB	Output is correct
8	Correct	3 ms	8728 KB	Output is correct
9	Correct	4 ms	8284 KB	Output is correct
10	Correct	3 ms	8280 KB	Output is correct
11	Correct	3 ms	8284 KB	Output is correct
12	Correct	4 ms	8284 KB	Output is correct
13	Correct	3 ms	8284 KB	Output is correct
14	Correct	3 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	3 ms	8284 KB	Output is correct
18	Correct	3 ms	8284 KB	Output is correct
19	Correct	4 ms	8284 KB	Output is correct
20	Correct	3 ms	8472 KB	Output is correct
21	Correct	3 ms	8280 KB	Output is correct
22	Correct	3 ms	8280 KB	Output is correct
23	Correct	3 ms	8476 KB	Output is correct
24	Correct	4 ms	8284 KB	Output is correct
25	Correct	3 ms	8280 KB	Output is correct
26	Correct	4 ms	8280 KB	Output is correct
27	Correct	3 ms	8284 KB	Output is correct
28	Correct	3 ms	8284 KB	Output is correct
29	Incorrect	2 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	8284 KB	Output is correct
2	Correct	3 ms	8284 KB	Output is correct
3	Correct	3 ms	8284 KB	Output is correct
4	Correct	3 ms	8284 KB	Output is correct
5	Correct	3 ms	8284 KB	Output is correct
6	Correct	3 ms	8284 KB	Output is correct
7	Correct	4 ms	8284 KB	Output is correct
8	Correct	3 ms	8728 KB	Output is correct
9	Correct	4 ms	8284 KB	Output is correct
10	Correct	3 ms	8280 KB	Output is correct
11	Correct	3 ms	8284 KB	Output is correct
12	Correct	4 ms	8284 KB	Output is correct
13	Correct	3 ms	8284 KB	Output is correct
14	Correct	3 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	3 ms	8284 KB	Output is correct
18	Correct	3 ms	8284 KB	Output is correct
19	Correct	4 ms	8284 KB	Output is correct
20	Correct	3 ms	8472 KB	Output is correct
21	Correct	3 ms	8280 KB	Output is correct
22	Correct	3 ms	8280 KB	Output is correct
23	Correct	3 ms	8476 KB	Output is correct
24	Correct	4 ms	8284 KB	Output is correct
25	Correct	3 ms	8280 KB	Output is correct
26	Correct	4 ms	8280 KB	Output is correct
27	Correct	3 ms	8284 KB	Output is correct
28	Correct	3 ms	8284 KB	Output is correct
29	Correct	51 ms	8536 KB	Output is correct
30	Correct	91 ms	8536 KB	Output is correct
31	Correct	83 ms	8536 KB	Output is correct
32	Correct	63 ms	8536 KB	Output is correct
33	Correct	41 ms	8536 KB	Output is correct
34	Correct	90 ms	8540 KB	Output is correct
35	Correct	103 ms	8564 KB	Output is correct
36	Correct	24 ms	8572 KB	Output is correct
37	Correct	55 ms	8540 KB	Output is correct
38	Correct	46 ms	8556 KB	Output is correct
39	Correct	62 ms	8532 KB	Output is correct
40	Correct	55 ms	8556 KB	Output is correct
41	Correct	56 ms	8540 KB	Output is correct
42	Correct	57 ms	8568 KB	Output is correct
43	Correct	39 ms	8540 KB	Output is correct
44	Correct	66 ms	8536 KB	Output is correct
45	Correct	92 ms	8540 KB	Output is correct
46	Correct	96 ms	8540 KB	Output is correct
47	Correct	52 ms	8540 KB	Output is correct
48	Correct	61 ms	8472 KB	Output is correct
49	Correct	72 ms	8540 KB	Output is correct
50	Correct	100 ms	8792 KB	Output is correct
51	Correct	50 ms	8536 KB	Output is correct
52	Correct	63 ms	8540 KB	Output is correct
53	Correct	77 ms	8536 KB	Output is correct
54	Correct	93 ms	8536 KB	Output is correct
55	Execution timed out	2024 ms	19028 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	8284 KB	Output is correct
2	Correct	3 ms	8284 KB	Output is correct
3	Correct	3 ms	8284 KB	Output is correct
4	Correct	3 ms	8284 KB	Output is correct
5	Correct	3 ms	8284 KB	Output is correct
6	Correct	3 ms	8284 KB	Output is correct
7	Correct	4 ms	8284 KB	Output is correct
8	Correct	3 ms	8728 KB	Output is correct
9	Correct	4 ms	8284 KB	Output is correct
10	Correct	3 ms	8280 KB	Output is correct
11	Correct	3 ms	8284 KB	Output is correct
12	Correct	4 ms	8284 KB	Output is correct
13	Correct	3 ms	8284 KB	Output is correct
14	Correct	3 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	3 ms	8284 KB	Output is correct
18	Correct	3 ms	8284 KB	Output is correct
19	Correct	4 ms	8284 KB	Output is correct
20	Correct	3 ms	8472 KB	Output is correct
21	Correct	3 ms	8280 KB	Output is correct
22	Correct	3 ms	8280 KB	Output is correct
23	Correct	3 ms	8476 KB	Output is correct
24	Correct	4 ms	8284 KB	Output is correct
25	Correct	3 ms	8280 KB	Output is correct
26	Correct	4 ms	8280 KB	Output is correct
27	Correct	3 ms	8284 KB	Output is correct
28	Correct	3 ms	8284 KB	Output is correct
29	Correct	51 ms	8536 KB	Output is correct
30	Correct	91 ms	8536 KB	Output is correct
31	Correct	83 ms	8536 KB	Output is correct
32	Correct	63 ms	8536 KB	Output is correct
33	Correct	41 ms	8536 KB	Output is correct
34	Correct	90 ms	8540 KB	Output is correct
35	Correct	103 ms	8564 KB	Output is correct
36	Correct	24 ms	8572 KB	Output is correct
37	Correct	55 ms	8540 KB	Output is correct
38	Correct	46 ms	8556 KB	Output is correct
39	Correct	62 ms	8532 KB	Output is correct
40	Correct	55 ms	8556 KB	Output is correct
41	Correct	56 ms	8540 KB	Output is correct
42	Correct	57 ms	8568 KB	Output is correct
43	Correct	39 ms	8540 KB	Output is correct
44	Correct	66 ms	8536 KB	Output is correct
45	Correct	92 ms	8540 KB	Output is correct
46	Correct	96 ms	8540 KB	Output is correct
47	Correct	52 ms	8540 KB	Output is correct
48	Correct	61 ms	8472 KB	Output is correct
49	Correct	72 ms	8540 KB	Output is correct
50	Correct	100 ms	8792 KB	Output is correct
51	Correct	50 ms	8536 KB	Output is correct
52	Correct	63 ms	8540 KB	Output is correct
53	Correct	77 ms	8536 KB	Output is correct
54	Correct	93 ms	8536 KB	Output is correct
55	Incorrect	2 ms	8284 KB	Output isn't correct
56	Halted	0 ms	0 KB	-

Submission #930521

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