oj.uz

Submission #891124

# Submission time Handle Problem Language Result Execution time Memory
891124 2023-12-22T08:07:31 Z Nurislam Jail (JOI22_jail) C++14
26 / 100
 52 ms 12208 KB 
#include <bits/stdc++.h>
using namespace std;/*
<<<<It's never too late for a new beginning in your life>>>>
Today is hard
  tomorrow will worse
  but the day after tomorrow will be the sunshine..
 
HARD WORK BEATS TALENT WHEN TALENT DOESN'T WORK HARD............
Never give up  */
//The most CHALISHKANCHIK
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimize("Ofast,unroll-loops")
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
//~ #define int long long
typedef vector<int> vi;
typedef pair<int,int> pii;
typedef vector<pair<int,int> > vii;
const long long N = 2e5+50, inf = 1e18, mod = 1e9+7;
  vector<int>v[N],pred(N);
  vector<int>col(N),vis(N);
void dfs(int x,int pr){
	vis[x] = 1;
	for(auto to:v[x]){
		if(to==pr||col[to])continue;
		dfs(to,x);
	}
}
void solve(){
	int n,m;
	cin>>n;
	for(int i = 1;i<=n;i++){
		v[i].clear();
		vis[i] = 0;
		col[i] = 0;
	}
	for(int i = 1;i<n;i++){
		int a,b;
		cin>>a>>b;
		v[a].pb(b);
		v[b].pb(a);
	}
	cin>>m;
	vector<pii>g(m);
	for(int i = 0;i<m;i++){
		int a,b;
		cin>>a>>b;
		g[i] = {a, b};
	}
  	if(m<=6){
   	vector<int>ind;
   	for(int i = 0;i<m;i++)ind.pb(i);

   	do
   	{
		for(int i = 1;i<=n;i++)col[i] = 0;
		for(auto to:g){
			col[to.ff] += 1;
		}
		bool flag = true;
    	for(auto to:ind){
     		int a = g[to].ff;
     		int b = g[to].ss;
     		col[a]--;
     		for(int i = 1;i<=n;i++)vis[i] = 0;
		 		if(col[a]>=1){
		  			flag = false;
		  			break;
		 		}
				dfs(a,-1);
				col[b] ++;
				if(vis[b]==0){
					flag = false;
					break;
				}
			}
			if(flag){
				cout<<"Yes\n";
				return;
			}
		}while (next_permutation(all(ind)));
		
		cout<<"No\n";
  	}
  	else{
		sort(all(g));
		int mn = 1e9;
		for(int i = m-1;i>=0;i--){
			if(mn < g[i].ss){
				cout<<"No\n";
				return;
			}
			mn = min(mn, g[i].ss);
		}
		cout << "Yes\n";
  }
}
main(){
	ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
	int t = 1;
	cin >> t;
	while(t--){
		solve();
	}
}

Compilation message

jail.cpp:101:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  101 | main(){
      | ^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7512 KB Output is correct
2 Correct 2 ms 7516 KB Output is correct
3 Correct 2 ms 7516 KB Output is correct
4 Correct 9 ms 7516 KB Output is correct
5 Correct 16 ms 7532 KB Output is correct
6 Correct 2 ms 7516 KB Output is correct
7 Correct 14 ms 7516 KB Output is correct
8 Correct 3 ms 7516 KB Output is correct
9 Correct 16 ms 7516 KB Output is correct
10 Correct 24 ms 11236 KB Output is correct
11 Correct 9 ms 7516 KB Output is correct
12 Correct 23 ms 7528 KB Output is correct
13 Correct 31 ms 11860 KB Output is correct
14 Correct 29 ms 11608 KB Output is correct
15 Correct 32 ms 11676 KB Output is correct
16 Correct 46 ms 12124 KB Output is correct
17 Correct 31 ms 11488 KB Output is correct
18 Correct 43 ms 12208 KB Output is correct
19 Correct 31 ms 11612 KB Output is correct
20 Correct 36 ms 11660 KB Output is correct
21 Correct 36 ms 11608 KB Output is correct
22 Correct 30 ms 11612 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7516 KB Output is correct
2 Correct 2 ms 7260 KB Output is correct
3 Correct 3 ms 7516 KB Output is correct
4 Correct 3 ms 7272 KB Output is correct
5 Correct 3 ms 7516 KB Output is correct
6 Correct 3 ms 7516 KB Output is correct
7 Correct 3 ms 7516 KB Output is correct
8 Correct 3 ms 7516 KB Output is correct
9 Correct 3 ms 7516 KB Output is correct
10 Correct 3 ms 7516 KB Output is correct
11 Correct 3 ms 7716 KB Output is correct
12 Correct 2 ms 7516 KB Output is correct
13 Correct 2 ms 7512 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7516 KB Output is correct
2 Correct 2 ms 7260 KB Output is correct
3 Correct 3 ms 7516 KB Output is correct
4 Correct 3 ms 7272 KB Output is correct
5 Correct 3 ms 7516 KB Output is correct
6 Correct 3 ms 7516 KB Output is correct
7 Correct 3 ms 7516 KB Output is correct
8 Correct 3 ms 7516 KB Output is correct
9 Correct 3 ms 7516 KB Output is correct
10 Correct 3 ms 7516 KB Output is correct
11 Correct 3 ms 7716 KB Output is correct
12 Correct 2 ms 7516 KB Output is correct
13 Correct 2 ms 7512 KB Output is correct
14 Correct 2 ms 7516 KB Output is correct
15 Correct 2 ms 7516 KB Output is correct
16 Correct 14 ms 7516 KB Output is correct
17 Correct 3 ms 7516 KB Output is correct
18 Correct 19 ms 7532 KB Output is correct
19 Correct 2 ms 7516 KB Output is correct
20 Correct 12 ms 7516 KB Output is correct
21 Correct 19 ms 7516 KB Output is correct
22 Correct 13 ms 7532 KB Output is correct
23 Correct 2 ms 7260 KB Output is correct
24 Correct 3 ms 7516 KB Output is correct
25 Correct 52 ms 7516 KB Output is correct
26 Correct 9 ms 7516 KB Output is correct
27 Correct 10 ms 7516 KB Output is correct
28 Correct 7 ms 7524 KB Output is correct

Subtask #4
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7516 KB Output is correct
2 Correct 2 ms 7260 KB Output is correct
3 Correct 3 ms 7516 KB Output is correct
4 Correct 3 ms 7272 KB Output is correct
5 Correct 3 ms 7516 KB Output is correct
6 Correct 3 ms 7516 KB Output is correct
7 Correct 3 ms 7516 KB Output is correct
8 Correct 3 ms 7516 KB Output is correct
9 Correct 3 ms 7516 KB Output is correct
10 Correct 3 ms 7516 KB Output is correct
11 Correct 3 ms 7716 KB Output is correct
12 Correct 2 ms 7516 KB Output is correct
13 Correct 2 ms 7512 KB Output is correct
14 Correct 2 ms 7516 KB Output is correct
15 Correct 2 ms 7516 KB Output is correct
16 Correct 14 ms 7516 KB Output is correct
17 Correct 3 ms 7516 KB Output is correct
18 Correct 19 ms 7532 KB Output is correct
19 Correct 2 ms 7516 KB Output is correct
20 Correct 12 ms 7516 KB Output is correct
21 Correct 19 ms 7516 KB Output is correct
22 Correct 13 ms 7532 KB Output is correct
23 Correct 2 ms 7260 KB Output is correct
24 Correct 3 ms 7516 KB Output is correct
25 Correct 52 ms 7516 KB Output is correct
26 Correct 9 ms 7516 KB Output is correct
27 Correct 10 ms 7516 KB Output is correct
28 Correct 7 ms 7524 KB Output is correct
29 Correct 3 ms 7516 KB Output is correct
30 Incorrect 3 ms 7516 KB Output isn't correct
31 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7516 KB Output is correct
2 Correct 2 ms 7260 KB Output is correct
3 Correct 3 ms 7516 KB Output is correct
4 Correct 3 ms 7272 KB Output is correct
5 Correct 3 ms 7516 KB Output is correct
6 Correct 3 ms 7516 KB Output is correct
7 Correct 3 ms 7516 KB Output is correct
8 Correct 3 ms 7516 KB Output is correct
9 Correct 3 ms 7516 KB Output is correct
10 Correct 3 ms 7516 KB Output is correct
11 Correct 3 ms 7716 KB Output is correct
12 Correct 2 ms 7516 KB Output is correct
13 Correct 2 ms 7512 KB Output is correct
14 Correct 2 ms 7516 KB Output is correct
15 Correct 2 ms 7516 KB Output is correct
16 Correct 14 ms 7516 KB Output is correct
17 Correct 3 ms 7516 KB Output is correct
18 Correct 19 ms 7532 KB Output is correct
19 Correct 2 ms 7516 KB Output is correct
20 Correct 12 ms 7516 KB Output is correct
21 Correct 19 ms 7516 KB Output is correct
22 Correct 13 ms 7532 KB Output is correct
23 Correct 2 ms 7260 KB Output is correct
24 Correct 3 ms 7516 KB Output is correct
25 Correct 52 ms 7516 KB Output is correct
26 Correct 9 ms 7516 KB Output is correct
27 Correct 10 ms 7516 KB Output is correct
28 Correct 7 ms 7524 KB Output is correct
29 Correct 3 ms 7516 KB Output is correct
30 Incorrect 3 ms 7516 KB Output isn't correct
31 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7512 KB Output is correct
2 Correct 2 ms 7468 KB Output is correct
3 Correct 2 ms 7516 KB Output is correct
4 Correct 2 ms 7256 KB Output is correct
5 Correct 9 ms 7516 KB Output is correct
6 Correct 2 ms 7516 KB Output is correct
7 Correct 2 ms 7516 KB Output is correct
8 Correct 3 ms 7260 KB Output is correct
9 Correct 2 ms 7516 KB Output is correct
10 Correct 3 ms 7524 KB Output is correct
11 Correct 8 ms 7516 KB Output is correct
12 Incorrect 3 ms 7512 KB Output isn't correct
13 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7512 KB Output is correct
2 Correct 2 ms 7516 KB Output is correct
3 Correct 2 ms 7516 KB Output is correct
4 Correct 9 ms 7516 KB Output is correct
5 Correct 16 ms 7532 KB Output is correct
6 Correct 2 ms 7516 KB Output is correct
7 Correct 14 ms 7516 KB Output is correct
8 Correct 3 ms 7516 KB Output is correct
9 Correct 16 ms 7516 KB Output is correct
10 Correct 24 ms 11236 KB Output is correct
11 Correct 9 ms 7516 KB Output is correct
12 Correct 23 ms 7528 KB Output is correct
13 Correct 31 ms 11860 KB Output is correct
14 Correct 29 ms 11608 KB Output is correct
15 Correct 32 ms 11676 KB Output is correct
16 Correct 46 ms 12124 KB Output is correct
17 Correct 31 ms 11488 KB Output is correct
18 Correct 43 ms 12208 KB Output is correct
19 Correct 31 ms 11612 KB Output is correct
20 Correct 36 ms 11660 KB Output is correct
21 Correct 36 ms 11608 KB Output is correct
22 Correct 30 ms 11612 KB Output is correct
23 Correct 2 ms 7516 KB Output is correct
24 Correct 2 ms 7260 KB Output is correct
25 Correct 3 ms 7516 KB Output is correct
26 Correct 3 ms 7272 KB Output is correct
27 Correct 3 ms 7516 KB Output is correct
28 Correct 3 ms 7516 KB Output is correct
29 Correct 3 ms 7516 KB Output is correct
30 Correct 3 ms 7516 KB Output is correct
31 Correct 3 ms 7516 KB Output is correct
32 Correct 3 ms 7516 KB Output is correct
33 Correct 3 ms 7716 KB Output is correct
34 Correct 2 ms 7516 KB Output is correct
35 Correct 2 ms 7512 KB Output is correct
36 Correct 2 ms 7516 KB Output is correct
37 Correct 2 ms 7516 KB Output is correct
38 Correct 14 ms 7516 KB Output is correct
39 Correct 3 ms 7516 KB Output is correct
40 Correct 19 ms 7532 KB Output is correct
41 Correct 2 ms 7516 KB Output is correct
42 Correct 12 ms 7516 KB Output is correct
43 Correct 19 ms 7516 KB Output is correct
44 Correct 13 ms 7532 KB Output is correct
45 Correct 2 ms 7260 KB Output is correct
46 Correct 3 ms 7516 KB Output is correct
47 Correct 52 ms 7516 KB Output is correct
48 Correct 9 ms 7516 KB Output is correct
49 Correct 10 ms 7516 KB Output is correct
50 Correct 7 ms 7524 KB Output is correct
51 Correct 3 ms 7516 KB Output is correct
52 Incorrect 3 ms 7516 KB Output isn't correct
53 Halted 0 ms 0 KB -