답안 #974533

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
974533	2024-05-03T12:25:40 Z	kl0989e	Joker (BOI20_joker)	C++17	14 / 100	2000 ms	22108 KB

Joker

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

#define ll long long
#define fi first
#define se second
#define pb push_back
#define vi vector<int>
#define pi pair<int, int>
#define all(x) (x).begin(),(x).end()

const int maxn=2e5+10;
vector<vector<pi>> graph(maxn);
vi col(maxn,-1);

bool dfs(int cur, int prev, int color, int l, int r) {
    if (col[cur]==1-color) {
        return 0;
    }
    if (col[cur]!=-1) {
        return 1;
    }
    col[cur]=color;
    for (auto [to,ind]:graph[cur]) {
        if (l<=ind && ind<=r) {
            continue;
        }
        if (to==prev) {
            continue;
        }
        if (!dfs(to,cur,1-color,l,r)) {
            return 0;
        }
    }
    return 1;
}

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    int n,m,q;
    cin >> n >> m >> q;
    vector<pi> vert(m);
    for (int i=0; i<m; i++) {
        cin >> vert[i].fi >> vert[i].se;
        vert[i].fi--;
        vert[i].se--;
        graph[vert[i].fi].pb({vert[i].se,i+1});
        graph[vert[i].se].pb({vert[i].fi,i+1});
    }
    int l,r;
    for (int i=0; i<q; i++) {
        cin >> l >> r;
        fill(all(col),-1);
        bool ok=1;
        for (int j=0; j<n; j++) {
            if (col[j]==-1) {
                if (!dfs(j,-1,0,l,r)) {
                    ok=0;
                    break;
                }
            }
        }
        if (ok) {
            cout << "NO\n";
        }
        else {
            cout << "YES\n";
        }
    }
    return 0;
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	5724 KB	Output is correct
2	Correct	3 ms	5952 KB	Output is correct
3	Correct	3 ms	5724 KB	Output is correct
4	Correct	2 ms	5724 KB	Output is correct
5	Correct	2 ms	5724 KB	Output is correct
6	Correct	3 ms	5944 KB	Output is correct
7	Correct	5 ms	5724 KB	Output is correct
8	Correct	6 ms	5724 KB	Output is correct
9	Correct	5 ms	5720 KB	Output is correct
10	Correct	4 ms	5724 KB	Output is correct
11	Correct	5 ms	5724 KB	Output is correct
12	Correct	5 ms	5724 KB	Output is correct
13	Correct	5 ms	5724 KB	Output is correct
14	Correct	5 ms	5724 KB	Output is correct
15	Correct	5 ms	5724 KB	Output is correct
16	Correct	5 ms	5724 KB	Output is correct
17	Correct	5 ms	5720 KB	Output is correct
18	Correct	5 ms	5724 KB	Output is correct
19	Correct	5 ms	5724 KB	Output is correct
20	Correct	5 ms	5724 KB	Output is correct
21	Correct	4 ms	5724 KB	Output is correct
22	Correct	5 ms	5720 KB	Output is correct
23	Correct	5 ms	5892 KB	Output is correct
24	Correct	4 ms	5724 KB	Output is correct
25	Correct	5 ms	5928 KB	Output is correct
26	Correct	4 ms	5724 KB	Output is correct
27	Correct	5 ms	5724 KB	Output is correct
28	Correct	5 ms	5724 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	5724 KB	Output is correct
2	Correct	3 ms	5952 KB	Output is correct
3	Correct	3 ms	5724 KB	Output is correct
4	Correct	2 ms	5724 KB	Output is correct
5	Correct	2 ms	5724 KB	Output is correct
6	Correct	3 ms	5944 KB	Output is correct
7	Correct	5 ms	5724 KB	Output is correct
8	Correct	6 ms	5724 KB	Output is correct
9	Correct	5 ms	5720 KB	Output is correct
10	Correct	4 ms	5724 KB	Output is correct
11	Correct	5 ms	5724 KB	Output is correct
12	Correct	5 ms	5724 KB	Output is correct
13	Correct	5 ms	5724 KB	Output is correct
14	Correct	5 ms	5724 KB	Output is correct
15	Correct	5 ms	5724 KB	Output is correct
16	Correct	5 ms	5724 KB	Output is correct
17	Correct	5 ms	5720 KB	Output is correct
18	Correct	5 ms	5724 KB	Output is correct
19	Correct	5 ms	5724 KB	Output is correct
20	Correct	5 ms	5724 KB	Output is correct
21	Correct	4 ms	5724 KB	Output is correct
22	Correct	5 ms	5720 KB	Output is correct
23	Correct	5 ms	5892 KB	Output is correct
24	Correct	4 ms	5724 KB	Output is correct
25	Correct	5 ms	5928 KB	Output is correct
26	Correct	4 ms	5724 KB	Output is correct
27	Correct	5 ms	5724 KB	Output is correct
28	Correct	5 ms	5724 KB	Output is correct
29	Correct	93 ms	5980 KB	Output is correct
30	Correct	73 ms	5980 KB	Output is correct
31	Correct	61 ms	6080 KB	Output is correct
32	Correct	41 ms	5980 KB	Output is correct
33	Correct	32 ms	5980 KB	Output is correct
34	Correct	57 ms	6232 KB	Output is correct
35	Correct	74 ms	5976 KB	Output is correct
36	Correct	39 ms	5980 KB	Output is correct
37	Correct	80 ms	5980 KB	Output is correct
38	Correct	81 ms	6072 KB	Output is correct
39	Correct	66 ms	5976 KB	Output is correct
40	Correct	46 ms	5976 KB	Output is correct
41	Correct	45 ms	5976 KB	Output is correct
42	Correct	44 ms	5980 KB	Output is correct
43	Correct	31 ms	5980 KB	Output is correct
44	Correct	37 ms	5980 KB	Output is correct
45	Correct	39 ms	5980 KB	Output is correct
46	Correct	36 ms	6088 KB	Output is correct
47	Correct	48 ms	6080 KB	Output is correct
48	Correct	48 ms	5980 KB	Output is correct
49	Correct	54 ms	5976 KB	Output is correct
50	Correct	61 ms	5976 KB	Output is correct
51	Correct	47 ms	5980 KB	Output is correct
52	Correct	52 ms	5968 KB	Output is correct
53	Correct	61 ms	5976 KB	Output is correct
54	Correct	72 ms	5980 KB	Output is correct

Subtask #3
0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	5724 KB	Output is correct
2	Correct	3 ms	5952 KB	Output is correct
3	Execution timed out	2041 ms	20100 KB	Time limit exceeded
4	Halted	0 ms	0 KB	-

Subtask #4
0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	5724 KB	Output is correct
2	Correct	3 ms	5952 KB	Output is correct
3	Correct	3 ms	5724 KB	Output is correct
4	Correct	2 ms	5724 KB	Output is correct
5	Correct	2 ms	5724 KB	Output is correct
6	Correct	3 ms	5944 KB	Output is correct
7	Correct	5 ms	5724 KB	Output is correct
8	Correct	6 ms	5724 KB	Output is correct
9	Correct	5 ms	5720 KB	Output is correct
10	Correct	4 ms	5724 KB	Output is correct
11	Correct	5 ms	5724 KB	Output is correct
12	Correct	5 ms	5724 KB	Output is correct
13	Correct	5 ms	5724 KB	Output is correct
14	Correct	5 ms	5724 KB	Output is correct
15	Correct	5 ms	5724 KB	Output is correct
16	Correct	5 ms	5724 KB	Output is correct
17	Correct	5 ms	5720 KB	Output is correct
18	Correct	5 ms	5724 KB	Output is correct
19	Correct	5 ms	5724 KB	Output is correct
20	Correct	5 ms	5724 KB	Output is correct
21	Correct	4 ms	5724 KB	Output is correct
22	Correct	5 ms	5720 KB	Output is correct
23	Correct	5 ms	5892 KB	Output is correct
24	Correct	4 ms	5724 KB	Output is correct
25	Correct	5 ms	5928 KB	Output is correct
26	Correct	4 ms	5724 KB	Output is correct
27	Correct	5 ms	5724 KB	Output is correct
28	Correct	5 ms	5724 KB	Output is correct
29	Execution timed out	2041 ms	20100 KB	Time limit exceeded
30	Halted	0 ms	0 KB	-

Subtask #5
0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	5724 KB	Output is correct
2	Correct	3 ms	5952 KB	Output is correct
3	Correct	3 ms	5724 KB	Output is correct
4	Correct	2 ms	5724 KB	Output is correct
5	Correct	2 ms	5724 KB	Output is correct
6	Correct	3 ms	5944 KB	Output is correct
7	Correct	5 ms	5724 KB	Output is correct
8	Correct	6 ms	5724 KB	Output is correct
9	Correct	5 ms	5720 KB	Output is correct
10	Correct	4 ms	5724 KB	Output is correct
11	Correct	5 ms	5724 KB	Output is correct
12	Correct	5 ms	5724 KB	Output is correct
13	Correct	5 ms	5724 KB	Output is correct
14	Correct	5 ms	5724 KB	Output is correct
15	Correct	5 ms	5724 KB	Output is correct
16	Correct	5 ms	5724 KB	Output is correct
17	Correct	5 ms	5720 KB	Output is correct
18	Correct	5 ms	5724 KB	Output is correct
19	Correct	5 ms	5724 KB	Output is correct
20	Correct	5 ms	5724 KB	Output is correct
21	Correct	4 ms	5724 KB	Output is correct
22	Correct	5 ms	5720 KB	Output is correct
23	Correct	5 ms	5892 KB	Output is correct
24	Correct	4 ms	5724 KB	Output is correct
25	Correct	5 ms	5928 KB	Output is correct
26	Correct	4 ms	5724 KB	Output is correct
27	Correct	5 ms	5724 KB	Output is correct
28	Correct	5 ms	5724 KB	Output is correct
29	Correct	93 ms	5980 KB	Output is correct
30	Correct	73 ms	5980 KB	Output is correct
31	Correct	61 ms	6080 KB	Output is correct
32	Correct	41 ms	5980 KB	Output is correct
33	Correct	32 ms	5980 KB	Output is correct
34	Correct	57 ms	6232 KB	Output is correct
35	Correct	74 ms	5976 KB	Output is correct
36	Correct	39 ms	5980 KB	Output is correct
37	Correct	80 ms	5980 KB	Output is correct
38	Correct	81 ms	6072 KB	Output is correct
39	Correct	66 ms	5976 KB	Output is correct
40	Correct	46 ms	5976 KB	Output is correct
41	Correct	45 ms	5976 KB	Output is correct
42	Correct	44 ms	5980 KB	Output is correct
43	Correct	31 ms	5980 KB	Output is correct
44	Correct	37 ms	5980 KB	Output is correct
45	Correct	39 ms	5980 KB	Output is correct
46	Correct	36 ms	6088 KB	Output is correct
47	Correct	48 ms	6080 KB	Output is correct
48	Correct	48 ms	5980 KB	Output is correct
49	Correct	54 ms	5976 KB	Output is correct
50	Correct	61 ms	5976 KB	Output is correct
51	Correct	47 ms	5980 KB	Output is correct
52	Correct	52 ms	5968 KB	Output is correct
53	Correct	61 ms	5976 KB	Output is correct
54	Correct	72 ms	5980 KB	Output is correct
55	Execution timed out	2094 ms	22108 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

Subtask #6
0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	5724 KB	Output is correct
2	Correct	3 ms	5952 KB	Output is correct
3	Correct	3 ms	5724 KB	Output is correct
4	Correct	2 ms	5724 KB	Output is correct
5	Correct	2 ms	5724 KB	Output is correct
6	Correct	3 ms	5944 KB	Output is correct
7	Correct	5 ms	5724 KB	Output is correct
8	Correct	6 ms	5724 KB	Output is correct
9	Correct	5 ms	5720 KB	Output is correct
10	Correct	4 ms	5724 KB	Output is correct
11	Correct	5 ms	5724 KB	Output is correct
12	Correct	5 ms	5724 KB	Output is correct
13	Correct	5 ms	5724 KB	Output is correct
14	Correct	5 ms	5724 KB	Output is correct
15	Correct	5 ms	5724 KB	Output is correct
16	Correct	5 ms	5724 KB	Output is correct
17	Correct	5 ms	5720 KB	Output is correct
18	Correct	5 ms	5724 KB	Output is correct
19	Correct	5 ms	5724 KB	Output is correct
20	Correct	5 ms	5724 KB	Output is correct
21	Correct	4 ms	5724 KB	Output is correct
22	Correct	5 ms	5720 KB	Output is correct
23	Correct	5 ms	5892 KB	Output is correct
24	Correct	4 ms	5724 KB	Output is correct
25	Correct	5 ms	5928 KB	Output is correct
26	Correct	4 ms	5724 KB	Output is correct
27	Correct	5 ms	5724 KB	Output is correct
28	Correct	5 ms	5724 KB	Output is correct
29	Correct	93 ms	5980 KB	Output is correct
30	Correct	73 ms	5980 KB	Output is correct
31	Correct	61 ms	6080 KB	Output is correct
32	Correct	41 ms	5980 KB	Output is correct
33	Correct	32 ms	5980 KB	Output is correct
34	Correct	57 ms	6232 KB	Output is correct
35	Correct	74 ms	5976 KB	Output is correct
36	Correct	39 ms	5980 KB	Output is correct
37	Correct	80 ms	5980 KB	Output is correct
38	Correct	81 ms	6072 KB	Output is correct
39	Correct	66 ms	5976 KB	Output is correct
40	Correct	46 ms	5976 KB	Output is correct
41	Correct	45 ms	5976 KB	Output is correct
42	Correct	44 ms	5980 KB	Output is correct
43	Correct	31 ms	5980 KB	Output is correct
44	Correct	37 ms	5980 KB	Output is correct
45	Correct	39 ms	5980 KB	Output is correct
46	Correct	36 ms	6088 KB	Output is correct
47	Correct	48 ms	6080 KB	Output is correct
48	Correct	48 ms	5980 KB	Output is correct
49	Correct	54 ms	5976 KB	Output is correct
50	Correct	61 ms	5976 KB	Output is correct
51	Correct	47 ms	5980 KB	Output is correct
52	Correct	52 ms	5968 KB	Output is correct
53	Correct	61 ms	5976 KB	Output is correct
54	Correct	72 ms	5980 KB	Output is correct
55	Execution timed out	2041 ms	20100 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

답안 #974533

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