Submission #255939

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
255939	2020-08-02T06:27:52 Z	임성재(#5031)	Joker (BOI20_joker)	C++17	14 / 100	2000 ms	14812 KB

Joker

#include<bits/stdc++.h>  
using namespace std;  
  
#define fast ios::sync_with_stdio(false);cin.tie(NULL)  
#define fi first  
#define se second  
#define all(v) (v).begin(),(v).end()  
#define pb push_back  
#define eb emplace_back
#define pre(a) cout<<fixed; cout.precision(a)
#define mp make_pair
  
typedef long long ll;  
typedef pair<int,int> pii;  
typedef pair<ll,ll> pll;  
const long long INF = 1e18;
const int inf = 1e9;

int n, m, q;
int l, r;
vector<pii> e;
vector<pii> g[200010];
int d[200010];

bool dfs(int x) {
	for(auto i : g[x]) {
		if(l <= i.se && i.se <= r) continue;
		if(d[i.fi]) {
			if(abs(d[x] - d[i.fi]) % 2 == 0) {
				return true;
			}

			continue;
		}

		d[i.fi] = d[x] + 1;
		if(dfs(i.fi)) return true;
	}

	return false;
}

int main() {
	fast;

	cin >> n >> m >> q;

	for(int i=1; i<=m; i++) {
		int u, v;

		cin >> u >> v;

		//g[u].eb(v, i);
		//g[v].eb(u, i);

		e.eb(u, v);
	}

	for(int i=0; i<e.size(); i++) {
		g[e[i].fi].eb(e[i].se, i+1);
		g[e[i].se].eb(e[i].fi, i+1);
	}

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

		bool flag = false;

		for(int i=1; i<=n; i++) {
			d[i] = 0;
		}

		for(int i=1; i<=n; i++) {
			if(d[i] == 0) {
				d[i] = 1;
				if(dfs(i)) flag = true;
			}
		}

		if(flag) cout << "YES\n";
		else cout << "NO\n";
	}
}

Compilation message

Joker.cpp: In function 'int main()':
Joker.cpp:59:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0; i<e.size(); i++) {
               ~^~~~~~~~~

Subtask #1
6.0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	4992 KB	Output is correct
2	Correct	3 ms	4992 KB	Output is correct
3	Correct	3 ms	4992 KB	Output is correct
4	Correct	3 ms	4992 KB	Output is correct
5	Correct	3 ms	4992 KB	Output is correct
6	Correct	3 ms	4992 KB	Output is correct
7	Correct	4 ms	4992 KB	Output is correct
8	Correct	6 ms	4992 KB	Output is correct
9	Correct	4 ms	4992 KB	Output is correct
10	Correct	3 ms	4992 KB	Output is correct
11	Correct	4 ms	5104 KB	Output is correct
12	Correct	4 ms	4992 KB	Output is correct
13	Correct	3 ms	5120 KB	Output is correct
14	Correct	4 ms	4992 KB	Output is correct
15	Correct	4 ms	4992 KB	Output is correct
16	Correct	4 ms	4992 KB	Output is correct
17	Correct	3 ms	4992 KB	Output is correct
18	Correct	3 ms	4992 KB	Output is correct
19	Correct	4 ms	4992 KB	Output is correct
20	Correct	3 ms	4992 KB	Output is correct
21	Correct	4 ms	4992 KB	Output is correct
22	Correct	4 ms	4992 KB	Output is correct
23	Correct	3 ms	4992 KB	Output is correct
24	Correct	4 ms	4992 KB	Output is correct
25	Correct	4 ms	4992 KB	Output is correct
26	Correct	3 ms	4992 KB	Output is correct
27	Correct	3 ms	4992 KB	Output is correct
28	Correct	4 ms	4992 KB	Output is correct

Subtask #2
8.0 / 8.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	4992 KB	Output is correct
2	Correct	3 ms	4992 KB	Output is correct
3	Correct	3 ms	4992 KB	Output is correct
4	Correct	3 ms	4992 KB	Output is correct
5	Correct	3 ms	4992 KB	Output is correct
6	Correct	3 ms	4992 KB	Output is correct
7	Correct	4 ms	4992 KB	Output is correct
8	Correct	6 ms	4992 KB	Output is correct
9	Correct	4 ms	4992 KB	Output is correct
10	Correct	3 ms	4992 KB	Output is correct
11	Correct	4 ms	5104 KB	Output is correct
12	Correct	4 ms	4992 KB	Output is correct
13	Correct	3 ms	5120 KB	Output is correct
14	Correct	4 ms	4992 KB	Output is correct
15	Correct	4 ms	4992 KB	Output is correct
16	Correct	4 ms	4992 KB	Output is correct
17	Correct	3 ms	4992 KB	Output is correct
18	Correct	3 ms	4992 KB	Output is correct
19	Correct	4 ms	4992 KB	Output is correct
20	Correct	3 ms	4992 KB	Output is correct
21	Correct	4 ms	4992 KB	Output is correct
22	Correct	4 ms	4992 KB	Output is correct
23	Correct	3 ms	4992 KB	Output is correct
24	Correct	4 ms	4992 KB	Output is correct
25	Correct	4 ms	4992 KB	Output is correct
26	Correct	3 ms	4992 KB	Output is correct
27	Correct	3 ms	4992 KB	Output is correct
28	Correct	4 ms	4992 KB	Output is correct
29	Correct	71 ms	5120 KB	Output is correct
30	Correct	114 ms	5180 KB	Output is correct
31	Correct	103 ms	5120 KB	Output is correct
32	Correct	67 ms	5120 KB	Output is correct
33	Correct	37 ms	5172 KB	Output is correct
34	Correct	117 ms	5240 KB	Output is correct
35	Correct	122 ms	5120 KB	Output is correct
36	Correct	30 ms	5240 KB	Output is correct
37	Correct	79 ms	5120 KB	Output is correct
38	Correct	75 ms	5120 KB	Output is correct
39	Correct	84 ms	5120 KB	Output is correct
40	Correct	56 ms	5120 KB	Output is correct
41	Correct	62 ms	5120 KB	Output is correct
42	Correct	58 ms	5240 KB	Output is correct
43	Correct	31 ms	5120 KB	Output is correct
44	Correct	55 ms	5120 KB	Output is correct
45	Correct	91 ms	5308 KB	Output is correct
46	Correct	110 ms	5120 KB	Output is correct
47	Correct	55 ms	5120 KB	Output is correct
48	Correct	76 ms	5240 KB	Output is correct
49	Correct	94 ms	5120 KB	Output is correct
50	Correct	114 ms	5120 KB	Output is correct
51	Correct	52 ms	5120 KB	Output is correct
52	Correct	73 ms	5120 KB	Output is correct
53	Correct	97 ms	5120 KB	Output is correct
54	Correct	124 ms	5120 KB	Output is correct

Subtask #3
0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	4 ms	4992 KB	Output is correct
2	Correct	3 ms	4992 KB	Output is correct
3	Execution timed out	2086 ms	13928 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	4992 KB	Output is correct
2	Correct	3 ms	4992 KB	Output is correct
3	Correct	3 ms	4992 KB	Output is correct
4	Correct	3 ms	4992 KB	Output is correct
5	Correct	3 ms	4992 KB	Output is correct
6	Correct	3 ms	4992 KB	Output is correct
7	Correct	4 ms	4992 KB	Output is correct
8	Correct	6 ms	4992 KB	Output is correct
9	Correct	4 ms	4992 KB	Output is correct
10	Correct	3 ms	4992 KB	Output is correct
11	Correct	4 ms	5104 KB	Output is correct
12	Correct	4 ms	4992 KB	Output is correct
13	Correct	3 ms	5120 KB	Output is correct
14	Correct	4 ms	4992 KB	Output is correct
15	Correct	4 ms	4992 KB	Output is correct
16	Correct	4 ms	4992 KB	Output is correct
17	Correct	3 ms	4992 KB	Output is correct
18	Correct	3 ms	4992 KB	Output is correct
19	Correct	4 ms	4992 KB	Output is correct
20	Correct	3 ms	4992 KB	Output is correct
21	Correct	4 ms	4992 KB	Output is correct
22	Correct	4 ms	4992 KB	Output is correct
23	Correct	3 ms	4992 KB	Output is correct
24	Correct	4 ms	4992 KB	Output is correct
25	Correct	4 ms	4992 KB	Output is correct
26	Correct	3 ms	4992 KB	Output is correct
27	Correct	3 ms	4992 KB	Output is correct
28	Correct	4 ms	4992 KB	Output is correct
29	Execution timed out	2086 ms	13928 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	4992 KB	Output is correct
2	Correct	3 ms	4992 KB	Output is correct
3	Correct	3 ms	4992 KB	Output is correct
4	Correct	3 ms	4992 KB	Output is correct
5	Correct	3 ms	4992 KB	Output is correct
6	Correct	3 ms	4992 KB	Output is correct
7	Correct	4 ms	4992 KB	Output is correct
8	Correct	6 ms	4992 KB	Output is correct
9	Correct	4 ms	4992 KB	Output is correct
10	Correct	3 ms	4992 KB	Output is correct
11	Correct	4 ms	5104 KB	Output is correct
12	Correct	4 ms	4992 KB	Output is correct
13	Correct	3 ms	5120 KB	Output is correct
14	Correct	4 ms	4992 KB	Output is correct
15	Correct	4 ms	4992 KB	Output is correct
16	Correct	4 ms	4992 KB	Output is correct
17	Correct	3 ms	4992 KB	Output is correct
18	Correct	3 ms	4992 KB	Output is correct
19	Correct	4 ms	4992 KB	Output is correct
20	Correct	3 ms	4992 KB	Output is correct
21	Correct	4 ms	4992 KB	Output is correct
22	Correct	4 ms	4992 KB	Output is correct
23	Correct	3 ms	4992 KB	Output is correct
24	Correct	4 ms	4992 KB	Output is correct
25	Correct	4 ms	4992 KB	Output is correct
26	Correct	3 ms	4992 KB	Output is correct
27	Correct	3 ms	4992 KB	Output is correct
28	Correct	4 ms	4992 KB	Output is correct
29	Correct	71 ms	5120 KB	Output is correct
30	Correct	114 ms	5180 KB	Output is correct
31	Correct	103 ms	5120 KB	Output is correct
32	Correct	67 ms	5120 KB	Output is correct
33	Correct	37 ms	5172 KB	Output is correct
34	Correct	117 ms	5240 KB	Output is correct
35	Correct	122 ms	5120 KB	Output is correct
36	Correct	30 ms	5240 KB	Output is correct
37	Correct	79 ms	5120 KB	Output is correct
38	Correct	75 ms	5120 KB	Output is correct
39	Correct	84 ms	5120 KB	Output is correct
40	Correct	56 ms	5120 KB	Output is correct
41	Correct	62 ms	5120 KB	Output is correct
42	Correct	58 ms	5240 KB	Output is correct
43	Correct	31 ms	5120 KB	Output is correct
44	Correct	55 ms	5120 KB	Output is correct
45	Correct	91 ms	5308 KB	Output is correct
46	Correct	110 ms	5120 KB	Output is correct
47	Correct	55 ms	5120 KB	Output is correct
48	Correct	76 ms	5240 KB	Output is correct
49	Correct	94 ms	5120 KB	Output is correct
50	Correct	114 ms	5120 KB	Output is correct
51	Correct	52 ms	5120 KB	Output is correct
52	Correct	73 ms	5120 KB	Output is correct
53	Correct	97 ms	5120 KB	Output is correct
54	Correct	124 ms	5120 KB	Output is correct
55	Execution timed out	2080 ms	14812 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	4992 KB	Output is correct
2	Correct	3 ms	4992 KB	Output is correct
3	Correct	3 ms	4992 KB	Output is correct
4	Correct	3 ms	4992 KB	Output is correct
5	Correct	3 ms	4992 KB	Output is correct
6	Correct	3 ms	4992 KB	Output is correct
7	Correct	4 ms	4992 KB	Output is correct
8	Correct	6 ms	4992 KB	Output is correct
9	Correct	4 ms	4992 KB	Output is correct
10	Correct	3 ms	4992 KB	Output is correct
11	Correct	4 ms	5104 KB	Output is correct
12	Correct	4 ms	4992 KB	Output is correct
13	Correct	3 ms	5120 KB	Output is correct
14	Correct	4 ms	4992 KB	Output is correct
15	Correct	4 ms	4992 KB	Output is correct
16	Correct	4 ms	4992 KB	Output is correct
17	Correct	3 ms	4992 KB	Output is correct
18	Correct	3 ms	4992 KB	Output is correct
19	Correct	4 ms	4992 KB	Output is correct
20	Correct	3 ms	4992 KB	Output is correct
21	Correct	4 ms	4992 KB	Output is correct
22	Correct	4 ms	4992 KB	Output is correct
23	Correct	3 ms	4992 KB	Output is correct
24	Correct	4 ms	4992 KB	Output is correct
25	Correct	4 ms	4992 KB	Output is correct
26	Correct	3 ms	4992 KB	Output is correct
27	Correct	3 ms	4992 KB	Output is correct
28	Correct	4 ms	4992 KB	Output is correct
29	Correct	71 ms	5120 KB	Output is correct
30	Correct	114 ms	5180 KB	Output is correct
31	Correct	103 ms	5120 KB	Output is correct
32	Correct	67 ms	5120 KB	Output is correct
33	Correct	37 ms	5172 KB	Output is correct
34	Correct	117 ms	5240 KB	Output is correct
35	Correct	122 ms	5120 KB	Output is correct
36	Correct	30 ms	5240 KB	Output is correct
37	Correct	79 ms	5120 KB	Output is correct
38	Correct	75 ms	5120 KB	Output is correct
39	Correct	84 ms	5120 KB	Output is correct
40	Correct	56 ms	5120 KB	Output is correct
41	Correct	62 ms	5120 KB	Output is correct
42	Correct	58 ms	5240 KB	Output is correct
43	Correct	31 ms	5120 KB	Output is correct
44	Correct	55 ms	5120 KB	Output is correct
45	Correct	91 ms	5308 KB	Output is correct
46	Correct	110 ms	5120 KB	Output is correct
47	Correct	55 ms	5120 KB	Output is correct
48	Correct	76 ms	5240 KB	Output is correct
49	Correct	94 ms	5120 KB	Output is correct
50	Correct	114 ms	5120 KB	Output is correct
51	Correct	52 ms	5120 KB	Output is correct
52	Correct	73 ms	5120 KB	Output is correct
53	Correct	97 ms	5120 KB	Output is correct
54	Correct	124 ms	5120 KB	Output is correct
55	Execution timed out	2086 ms	13928 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

Submission #255939

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