답안 #925595

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
925595	2024-02-12T05:54:45 Z	vjudge1	Joker (BOI20_joker)	C++17	14 / 100	2000 ms	17088 KB

Joker

#include<iostream>
#include<cassert>
#include<cmath>
#include<cstring>
#include<algorithm>
#include<vector>
#include<stack>
#include<set>
#include<queue>
#include<map>

using namespace std;

const int N = (int)2e5 + 7;
const int inf = (int)1e9 + 7;
const int MOD = (int)998244353;
const long long INF = (long long)1e18 + 7; 

int mult(int x, int y) {
	return 1ll*x*y%MOD;
}

int sum(int x, int y) {
	x += y;
	if(x >= MOD) {
		x -= MOD;
	}
	return x;
}

int sub(int x, int y) {
	x -= y;
	if(x < 0) {
		x += MOD;
	}
	return x;
}

int n, m, q;
pair<int, int> e[N];
vector<int> g[N];
int used[N];

bool dfs(int v) {
	for(auto to : g[v]) {
		if(!used[to]) {
			used[to] = 3-used[v];
			if(dfs(to)) {
				return 1;
			}
		} else if(used[to] == used[v]) {
			return 1;
		}
	}
	return 0;
}

bool solve(int l, int r) {
	for(int i = 1; i <= n; ++i) {
		g[i].clear();
		used[i] = 0;
	}
	for(int i = 1; i <= m; ++i) {
		if(i >= l && i <= r) {
			continue;
		}
		int u = e[i].first;
		int v = e[i].second;
		g[u].push_back(v);
		g[v].push_back(u);
	}             
	for(int i = 1; i <= n; ++i) {
		if(!used[i]) {
			used[i] = 1;
			if(dfs(i)) {
				return 1;
			}			
		}
	}
	return 0;
}

int main() {	
	ios_base::sync_with_stdio(NULL);
	cin.tie(0);
	cin >> n >> m >> q;
	for(int i = 1; i <= m; ++i) {
		cin >> e[i].first >> e[i].second;
	}
	for(int i = 1; i <= q; ++i) {
		int l, r;
		cin >> l >> r;
		cout << (solve(l, r) ? "YES\n" : "NO\n");
	}
	return 0;
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	6492 KB	Output is correct
2	Correct	1 ms	6580 KB	Output is correct
3	Correct	1 ms	6492 KB	Output is correct
4	Correct	1 ms	6624 KB	Output is correct
5	Correct	2 ms	6492 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	2 ms	6492 KB	Output is correct
8	Correct	3 ms	6492 KB	Output is correct
9	Correct	2 ms	6596 KB	Output is correct
10	Correct	2 ms	6492 KB	Output is correct
11	Correct	2 ms	6488 KB	Output is correct
12	Correct	2 ms	6628 KB	Output is correct
13	Correct	2 ms	6492 KB	Output is correct
14	Correct	2 ms	6488 KB	Output is correct
15	Correct	2 ms	6488 KB	Output is correct
16	Correct	2 ms	6492 KB	Output is correct
17	Correct	2 ms	6492 KB	Output is correct
18	Correct	2 ms	6492 KB	Output is correct
19	Correct	2 ms	6620 KB	Output is correct
20	Correct	2 ms	6492 KB	Output is correct
21	Correct	2 ms	6492 KB	Output is correct
22	Correct	2 ms	6492 KB	Output is correct
23	Correct	2 ms	6632 KB	Output is correct
24	Correct	2 ms	6492 KB	Output is correct
25	Correct	2 ms	6492 KB	Output is correct
26	Correct	2 ms	6612 KB	Output is correct
27	Correct	2 ms	6492 KB	Output is correct
28	Correct	2 ms	6616 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	6492 KB	Output is correct
2	Correct	1 ms	6580 KB	Output is correct
3	Correct	1 ms	6492 KB	Output is correct
4	Correct	1 ms	6624 KB	Output is correct
5	Correct	2 ms	6492 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	2 ms	6492 KB	Output is correct
8	Correct	3 ms	6492 KB	Output is correct
9	Correct	2 ms	6596 KB	Output is correct
10	Correct	2 ms	6492 KB	Output is correct
11	Correct	2 ms	6488 KB	Output is correct
12	Correct	2 ms	6628 KB	Output is correct
13	Correct	2 ms	6492 KB	Output is correct
14	Correct	2 ms	6488 KB	Output is correct
15	Correct	2 ms	6488 KB	Output is correct
16	Correct	2 ms	6492 KB	Output is correct
17	Correct	2 ms	6492 KB	Output is correct
18	Correct	2 ms	6492 KB	Output is correct
19	Correct	2 ms	6620 KB	Output is correct
20	Correct	2 ms	6492 KB	Output is correct
21	Correct	2 ms	6492 KB	Output is correct
22	Correct	2 ms	6492 KB	Output is correct
23	Correct	2 ms	6632 KB	Output is correct
24	Correct	2 ms	6492 KB	Output is correct
25	Correct	2 ms	6492 KB	Output is correct
26	Correct	2 ms	6612 KB	Output is correct
27	Correct	2 ms	6492 KB	Output is correct
28	Correct	2 ms	6616 KB	Output is correct
29	Correct	52 ms	6492 KB	Output is correct
30	Correct	53 ms	6700 KB	Output is correct
31	Correct	39 ms	6748 KB	Output is correct
32	Correct	29 ms	6488 KB	Output is correct
33	Correct	20 ms	6492 KB	Output is correct
34	Correct	44 ms	6728 KB	Output is correct
35	Correct	65 ms	6492 KB	Output is correct
36	Correct	31 ms	6488 KB	Output is correct
37	Correct	63 ms	6748 KB	Output is correct
38	Correct	66 ms	6740 KB	Output is correct
39	Correct	46 ms	6492 KB	Output is correct
40	Correct	37 ms	6628 KB	Output is correct
41	Correct	25 ms	6492 KB	Output is correct
42	Correct	31 ms	6492 KB	Output is correct
43	Correct	29 ms	6488 KB	Output is correct
44	Correct	33 ms	6488 KB	Output is correct
45	Correct	23 ms	6492 KB	Output is correct
46	Correct	43 ms	6488 KB	Output is correct
47	Correct	28 ms	6492 KB	Output is correct
48	Correct	34 ms	6636 KB	Output is correct
49	Correct	42 ms	6744 KB	Output is correct
50	Correct	47 ms	6492 KB	Output is correct
51	Correct	34 ms	6492 KB	Output is correct
52	Correct	38 ms	6492 KB	Output is correct
53	Correct	48 ms	6492 KB	Output is correct
54	Correct	56 ms	6492 KB	Output is correct

Subtask #3
0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	6492 KB	Output is correct
2	Correct	1 ms	6580 KB	Output is correct
3	Execution timed out	2028 ms	16364 KB	Time limit exceeded
4	Halted	0 ms	0 KB	-

Subtask #4
0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	6492 KB	Output is correct
2	Correct	1 ms	6580 KB	Output is correct
3	Correct	1 ms	6492 KB	Output is correct
4	Correct	1 ms	6624 KB	Output is correct
5	Correct	2 ms	6492 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	2 ms	6492 KB	Output is correct
8	Correct	3 ms	6492 KB	Output is correct
9	Correct	2 ms	6596 KB	Output is correct
10	Correct	2 ms	6492 KB	Output is correct
11	Correct	2 ms	6488 KB	Output is correct
12	Correct	2 ms	6628 KB	Output is correct
13	Correct	2 ms	6492 KB	Output is correct
14	Correct	2 ms	6488 KB	Output is correct
15	Correct	2 ms	6488 KB	Output is correct
16	Correct	2 ms	6492 KB	Output is correct
17	Correct	2 ms	6492 KB	Output is correct
18	Correct	2 ms	6492 KB	Output is correct
19	Correct	2 ms	6620 KB	Output is correct
20	Correct	2 ms	6492 KB	Output is correct
21	Correct	2 ms	6492 KB	Output is correct
22	Correct	2 ms	6492 KB	Output is correct
23	Correct	2 ms	6632 KB	Output is correct
24	Correct	2 ms	6492 KB	Output is correct
25	Correct	2 ms	6492 KB	Output is correct
26	Correct	2 ms	6612 KB	Output is correct
27	Correct	2 ms	6492 KB	Output is correct
28	Correct	2 ms	6616 KB	Output is correct
29	Execution timed out	2028 ms	16364 KB	Time limit exceeded
30	Halted	0 ms	0 KB	-

Subtask #5
0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	6492 KB	Output is correct
2	Correct	1 ms	6580 KB	Output is correct
3	Correct	1 ms	6492 KB	Output is correct
4	Correct	1 ms	6624 KB	Output is correct
5	Correct	2 ms	6492 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	2 ms	6492 KB	Output is correct
8	Correct	3 ms	6492 KB	Output is correct
9	Correct	2 ms	6596 KB	Output is correct
10	Correct	2 ms	6492 KB	Output is correct
11	Correct	2 ms	6488 KB	Output is correct
12	Correct	2 ms	6628 KB	Output is correct
13	Correct	2 ms	6492 KB	Output is correct
14	Correct	2 ms	6488 KB	Output is correct
15	Correct	2 ms	6488 KB	Output is correct
16	Correct	2 ms	6492 KB	Output is correct
17	Correct	2 ms	6492 KB	Output is correct
18	Correct	2 ms	6492 KB	Output is correct
19	Correct	2 ms	6620 KB	Output is correct
20	Correct	2 ms	6492 KB	Output is correct
21	Correct	2 ms	6492 KB	Output is correct
22	Correct	2 ms	6492 KB	Output is correct
23	Correct	2 ms	6632 KB	Output is correct
24	Correct	2 ms	6492 KB	Output is correct
25	Correct	2 ms	6492 KB	Output is correct
26	Correct	2 ms	6612 KB	Output is correct
27	Correct	2 ms	6492 KB	Output is correct
28	Correct	2 ms	6616 KB	Output is correct
29	Correct	52 ms	6492 KB	Output is correct
30	Correct	53 ms	6700 KB	Output is correct
31	Correct	39 ms	6748 KB	Output is correct
32	Correct	29 ms	6488 KB	Output is correct
33	Correct	20 ms	6492 KB	Output is correct
34	Correct	44 ms	6728 KB	Output is correct
35	Correct	65 ms	6492 KB	Output is correct
36	Correct	31 ms	6488 KB	Output is correct
37	Correct	63 ms	6748 KB	Output is correct
38	Correct	66 ms	6740 KB	Output is correct
39	Correct	46 ms	6492 KB	Output is correct
40	Correct	37 ms	6628 KB	Output is correct
41	Correct	25 ms	6492 KB	Output is correct
42	Correct	31 ms	6492 KB	Output is correct
43	Correct	29 ms	6488 KB	Output is correct
44	Correct	33 ms	6488 KB	Output is correct
45	Correct	23 ms	6492 KB	Output is correct
46	Correct	43 ms	6488 KB	Output is correct
47	Correct	28 ms	6492 KB	Output is correct
48	Correct	34 ms	6636 KB	Output is correct
49	Correct	42 ms	6744 KB	Output is correct
50	Correct	47 ms	6492 KB	Output is correct
51	Correct	34 ms	6492 KB	Output is correct
52	Correct	38 ms	6492 KB	Output is correct
53	Correct	48 ms	6492 KB	Output is correct
54	Correct	56 ms	6492 KB	Output is correct
55	Execution timed out	2024 ms	17088 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

Subtask #6
0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	6492 KB	Output is correct
2	Correct	1 ms	6580 KB	Output is correct
3	Correct	1 ms	6492 KB	Output is correct
4	Correct	1 ms	6624 KB	Output is correct
5	Correct	2 ms	6492 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	2 ms	6492 KB	Output is correct
8	Correct	3 ms	6492 KB	Output is correct
9	Correct	2 ms	6596 KB	Output is correct
10	Correct	2 ms	6492 KB	Output is correct
11	Correct	2 ms	6488 KB	Output is correct
12	Correct	2 ms	6628 KB	Output is correct
13	Correct	2 ms	6492 KB	Output is correct
14	Correct	2 ms	6488 KB	Output is correct
15	Correct	2 ms	6488 KB	Output is correct
16	Correct	2 ms	6492 KB	Output is correct
17	Correct	2 ms	6492 KB	Output is correct
18	Correct	2 ms	6492 KB	Output is correct
19	Correct	2 ms	6620 KB	Output is correct
20	Correct	2 ms	6492 KB	Output is correct
21	Correct	2 ms	6492 KB	Output is correct
22	Correct	2 ms	6492 KB	Output is correct
23	Correct	2 ms	6632 KB	Output is correct
24	Correct	2 ms	6492 KB	Output is correct
25	Correct	2 ms	6492 KB	Output is correct
26	Correct	2 ms	6612 KB	Output is correct
27	Correct	2 ms	6492 KB	Output is correct
28	Correct	2 ms	6616 KB	Output is correct
29	Correct	52 ms	6492 KB	Output is correct
30	Correct	53 ms	6700 KB	Output is correct
31	Correct	39 ms	6748 KB	Output is correct
32	Correct	29 ms	6488 KB	Output is correct
33	Correct	20 ms	6492 KB	Output is correct
34	Correct	44 ms	6728 KB	Output is correct
35	Correct	65 ms	6492 KB	Output is correct
36	Correct	31 ms	6488 KB	Output is correct
37	Correct	63 ms	6748 KB	Output is correct
38	Correct	66 ms	6740 KB	Output is correct
39	Correct	46 ms	6492 KB	Output is correct
40	Correct	37 ms	6628 KB	Output is correct
41	Correct	25 ms	6492 KB	Output is correct
42	Correct	31 ms	6492 KB	Output is correct
43	Correct	29 ms	6488 KB	Output is correct
44	Correct	33 ms	6488 KB	Output is correct
45	Correct	23 ms	6492 KB	Output is correct
46	Correct	43 ms	6488 KB	Output is correct
47	Correct	28 ms	6492 KB	Output is correct
48	Correct	34 ms	6636 KB	Output is correct
49	Correct	42 ms	6744 KB	Output is correct
50	Correct	47 ms	6492 KB	Output is correct
51	Correct	34 ms	6492 KB	Output is correct
52	Correct	38 ms	6492 KB	Output is correct
53	Correct	48 ms	6492 KB	Output is correct
54	Correct	56 ms	6492 KB	Output is correct
55	Execution timed out	2028 ms	16364 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

답안 #925595

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