답안 #741149

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
741149	2023-05-13T16:11:01 Z	Dan4Life	Jail (JOI22_jail)	C++17	49 / 100	5000 ms	785092 KB

jail

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define fi first
#define se second
#define pb push_back
#define all(a) a.begin(),a.end()
const int mxN = (int)1.2e5+10;
const int mxM = (int)510;
int n, m, Cycle;
int ind[mxN], dis[mxM*2][mxN];
int s[mxM], t[mxM], vis[mxM];
vector<int> adj[mxN], adj2[mxM];

void dfs(int s, int p, int i){
	if(p==-1) dis[i][s] = 0;
	else dis[i][s] = dis[i][p]+1;
	for(auto u : adj[s])
		if(u!=p) dfs(u,s,i);
}

bool inPath(int x, int s, int t){
	return (dis[ind[s]][x]+dis[ind[t]][x]==dis[ind[s]][t]);
}

void dfs2(int s){
	vis[s]=1;
	for(auto u : adj2[s]){
		if(!vis[u]) dfs2(u);
		else if(vis[u]==1) { Cycle=1; return; }
	}
	vis[s]=2;
}

void solve(){
	cin >> n; Cycle = 0;
	for(int i = 1; i <= n; i++) adj[i].clear();
	for(int i = 0; i < m; i++) adj2[i].clear();
	for(int i = 0; i < n-1; i++){
		int a, b; cin >> a >> b;
		adj[a].pb(b), adj[b].pb(a);
	}
	for(int i = 1; i <= n; i++) dfs(i,-1,i);
	for(int i = 0; i < m; i++) vis[i]=0;
	cin >> m;
	vector<int> v; v.clear();
	for(int i = 0; i < m; i++) 
		cin >> s[i] >> t[i], v.pb(s[i]), v.pb(t[i]);
	sort(all(v)); v.erase(unique(all(v)),end(v));
	for(int i = 0; auto u : v) ind[u]=i, dfs(u,-1,i), i++;
	for(int i = 0; i < m; i++){
		for(int j = 0; j < m; j++){
			if(i!=j and inPath(s[j],s[i],t[i])) adj2[j].pb(i);
			if(i!=j and inPath(t[j],s[i],t[i])) adj2[i].pb(j);
		}
	}
	for(int i = 0; i < m; i++) if(!vis[i]) dfs2(i);
	cout << (!Cycle?"Yes":"No") << "\n";
}

int32_t main() {
	ios_base::sync_with_stdio(false); cin.tie(0);
	int t = 1; cin >> t; while(t--) solve();
}

Compilation message

jail.cpp: In function 'void solve()':
jail.cpp:50:17: warning: range-based 'for' loops with initializer only available with '-std=c++2a' or '-std=gnu++2a'
   50 |  for(int i = 0; auto u : v) ind[u]=i, dfs(u,-1,i), i++;
      |                 ^~~~

Subtask #1
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	3156 KB	Output is correct
2	Correct	2 ms	3156 KB	Output is correct
3	Correct	2 ms	3156 KB	Output is correct
4	Correct	55 ms	3980 KB	Output is correct
5	Correct	111 ms	4684 KB	Output is correct
6	Correct	11 ms	5176 KB	Output is correct
7	Correct	13 ms	5076 KB	Output is correct
8	Correct	20 ms	5336 KB	Output is correct
9	Runtime error	107 ms	89188 KB	Execution killed with signal 11
10	Halted	0 ms	0 KB	-

Subtask #2
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	3156 KB	Output is correct
2	Correct	2 ms	3156 KB	Output is correct
3	Correct	12 ms	5124 KB	Output is correct
4	Correct	12 ms	5168 KB	Output is correct
5	Correct	14 ms	5176 KB	Output is correct
6	Correct	13 ms	5172 KB	Output is correct
7	Correct	13 ms	5172 KB	Output is correct
8	Correct	13 ms	5092 KB	Output is correct
9	Correct	12 ms	5172 KB	Output is correct
10	Correct	15 ms	5076 KB	Output is correct
11	Correct	12 ms	5220 KB	Output is correct
12	Correct	6 ms	5076 KB	Output is correct
13	Correct	7 ms	5076 KB	Output is correct

Subtask #3
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	3156 KB	Output is correct
2	Correct	2 ms	3156 KB	Output is correct
3	Correct	12 ms	5124 KB	Output is correct
4	Correct	12 ms	5168 KB	Output is correct
5	Correct	14 ms	5176 KB	Output is correct
6	Correct	13 ms	5172 KB	Output is correct
7	Correct	13 ms	5172 KB	Output is correct
8	Correct	13 ms	5092 KB	Output is correct
9	Correct	12 ms	5172 KB	Output is correct
10	Correct	15 ms	5076 KB	Output is correct
11	Correct	12 ms	5220 KB	Output is correct
12	Correct	6 ms	5076 KB	Output is correct
13	Correct	7 ms	5076 KB	Output is correct
14	Correct	2 ms	3156 KB	Output is correct
15	Correct	2 ms	3156 KB	Output is correct
16	Correct	13 ms	5092 KB	Output is correct
17	Correct	12 ms	5076 KB	Output is correct
18	Correct	13 ms	5172 KB	Output is correct
19	Correct	2 ms	3156 KB	Output is correct
20	Correct	13 ms	5076 KB	Output is correct
21	Correct	13 ms	5088 KB	Output is correct
22	Correct	11 ms	5092 KB	Output is correct
23	Correct	2 ms	3156 KB	Output is correct
24	Correct	3 ms	4052 KB	Output is correct
25	Correct	15 ms	5076 KB	Output is correct
26	Correct	4 ms	5076 KB	Output is correct
27	Correct	12 ms	5076 KB	Output is correct
28	Correct	2 ms	3284 KB	Output is correct

Subtask #4
28.0 / 28.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	3156 KB	Output is correct
2	Correct	2 ms	3156 KB	Output is correct
3	Correct	12 ms	5124 KB	Output is correct
4	Correct	12 ms	5168 KB	Output is correct
5	Correct	14 ms	5176 KB	Output is correct
6	Correct	13 ms	5172 KB	Output is correct
7	Correct	13 ms	5172 KB	Output is correct
8	Correct	13 ms	5092 KB	Output is correct
9	Correct	12 ms	5172 KB	Output is correct
10	Correct	15 ms	5076 KB	Output is correct
11	Correct	12 ms	5220 KB	Output is correct
12	Correct	6 ms	5076 KB	Output is correct
13	Correct	7 ms	5076 KB	Output is correct
14	Correct	2 ms	3156 KB	Output is correct
15	Correct	2 ms	3156 KB	Output is correct
16	Correct	13 ms	5092 KB	Output is correct
17	Correct	12 ms	5076 KB	Output is correct
18	Correct	13 ms	5172 KB	Output is correct
19	Correct	2 ms	3156 KB	Output is correct
20	Correct	13 ms	5076 KB	Output is correct
21	Correct	13 ms	5088 KB	Output is correct
22	Correct	11 ms	5092 KB	Output is correct
23	Correct	2 ms	3156 KB	Output is correct
24	Correct	3 ms	4052 KB	Output is correct
25	Correct	15 ms	5076 KB	Output is correct
26	Correct	4 ms	5076 KB	Output is correct
27	Correct	12 ms	5076 KB	Output is correct
28	Correct	2 ms	3284 KB	Output is correct
29	Correct	20 ms	5332 KB	Output is correct
30	Correct	17 ms	5204 KB	Output is correct
31	Correct	17 ms	5236 KB	Output is correct
32	Correct	15 ms	5092 KB	Output is correct
33	Correct	14 ms	5076 KB	Output is correct
34	Correct	15 ms	4704 KB	Output is correct
35	Correct	16 ms	4820 KB	Output is correct
36	Correct	12 ms	4740 KB	Output is correct
37	Correct	9 ms	4704 KB	Output is correct

Subtask #5
0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	3156 KB	Output is correct
2	Correct	2 ms	3156 KB	Output is correct
3	Correct	12 ms	5124 KB	Output is correct
4	Correct	12 ms	5168 KB	Output is correct
5	Correct	14 ms	5176 KB	Output is correct
6	Correct	13 ms	5172 KB	Output is correct
7	Correct	13 ms	5172 KB	Output is correct
8	Correct	13 ms	5092 KB	Output is correct
9	Correct	12 ms	5172 KB	Output is correct
10	Correct	15 ms	5076 KB	Output is correct
11	Correct	12 ms	5220 KB	Output is correct
12	Correct	6 ms	5076 KB	Output is correct
13	Correct	7 ms	5076 KB	Output is correct
14	Correct	2 ms	3156 KB	Output is correct
15	Correct	2 ms	3156 KB	Output is correct
16	Correct	13 ms	5092 KB	Output is correct
17	Correct	12 ms	5076 KB	Output is correct
18	Correct	13 ms	5172 KB	Output is correct
19	Correct	2 ms	3156 KB	Output is correct
20	Correct	13 ms	5076 KB	Output is correct
21	Correct	13 ms	5088 KB	Output is correct
22	Correct	11 ms	5092 KB	Output is correct
23	Correct	2 ms	3156 KB	Output is correct
24	Correct	3 ms	4052 KB	Output is correct
25	Correct	15 ms	5076 KB	Output is correct
26	Correct	4 ms	5076 KB	Output is correct
27	Correct	12 ms	5076 KB	Output is correct
28	Correct	2 ms	3284 KB	Output is correct
29	Correct	20 ms	5332 KB	Output is correct
30	Correct	17 ms	5204 KB	Output is correct
31	Correct	17 ms	5236 KB	Output is correct
32	Correct	15 ms	5092 KB	Output is correct
33	Correct	14 ms	5076 KB	Output is correct
34	Correct	15 ms	4704 KB	Output is correct
35	Correct	16 ms	4820 KB	Output is correct
36	Correct	12 ms	4740 KB	Output is correct
37	Correct	9 ms	4704 KB	Output is correct
38	Runtime error	103 ms	89176 KB	Execution killed with signal 11
39	Halted	0 ms	0 KB	-

Subtask #6
0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	3156 KB	Output is correct
2	Correct	2 ms	3152 KB	Output is correct
3	Correct	2 ms	3156 KB	Output is correct
4	Correct	2 ms	3156 KB	Output is correct
5	Correct	10 ms	3284 KB	Output is correct
6	Correct	8 ms	5076 KB	Output is correct
7	Correct	9 ms	5076 KB	Output is correct
8	Correct	2 ms	3156 KB	Output is correct
9	Correct	2 ms	3156 KB	Output is correct
10	Correct	3 ms	4052 KB	Output is correct
11	Correct	2 ms	3284 KB	Output is correct
12	Correct	13 ms	4692 KB	Output is correct
13	Correct	106 ms	4612 KB	Output is correct
14	Correct	174 ms	4860 KB	Output is correct
15	Correct	156 ms	4716 KB	Output is correct
16	Execution timed out	5112 ms	785092 KB	Time limit exceeded
17	Halted	0 ms	0 KB	-

Subtask #7
0 / 23.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	3156 KB	Output is correct
2	Correct	2 ms	3156 KB	Output is correct
3	Correct	2 ms	3156 KB	Output is correct
4	Correct	55 ms	3980 KB	Output is correct
5	Correct	111 ms	4684 KB	Output is correct
6	Correct	11 ms	5176 KB	Output is correct
7	Correct	13 ms	5076 KB	Output is correct
8	Correct	20 ms	5336 KB	Output is correct
9	Runtime error	107 ms	89188 KB	Execution killed with signal 11
10	Halted	0 ms	0 KB	-

답안 #741149

Compilation message

Subtask #1 0 / 5.0

Subtask #2 5.0 / 5.0

Subtask #3 16.0 / 16.0

Subtask #4 28.0 / 28.0

Subtask #5 0 / 12.0

Subtask #6 0 / 11.0

Subtask #7 0 / 23.0

Subtask #1
0 / 5.0

Subtask #2
5.0 / 5.0

Subtask #3
16.0 / 16.0

Subtask #4
28.0 / 28.0

Subtask #5
0 / 12.0

Subtask #6
0 / 11.0

Subtask #7
0 / 23.0