oj.uz

Submission #631593

# Submission time Handle Problem Language Result Execution time Memory
631593 2022-08-18T09:30:42 Z alvingogo Jail (JOI22_jail) C++14
72 / 100
 3264 ms 1048576 KB 
#include <bits/stdc++.h>
#define AquA cin.tie(0);ios_base::sync_with_stdio(0);
#define fs first
#define sc second
#define cd complex<double>
#define p_q priority_queue
using namespace std;

struct TOPO{
	vector<vector<int> > e;
	int n;
	vector<int> in;
	void init(int x){
		e.resize(x);
		in.resize(x);
		n=x;
	}
	void add(int x,int y){
		e[x].push_back(y);
		in[y]++;
	}
	bool solve(){
		int cnt=0;
		queue<int> q;
		for(int i=0;i<n;i++){
			if(in[i]==0){
				q.push(i);
			}
		}
		while(q.size()){
			int a=q.front();
			q.pop();
			cnt++;
			for(auto h:e[a]){
				in[h]--;
				if(in[h]==0){
					q.push(h);
				}
			}
		}
		return cnt==n;
	}
};
struct no{
	vector<int> ch;
	int dep=-1;
	int fa=-1;
	vector<int> s,t;
};
vector<no> v;
void dfs(int r,int f){
	v[r].dep=v[f].dep+1;
	v[r].fa=f;
	for(auto h:v[r].ch){
		if(h!=f){
			dfs(h,r);
		}
	}
}
int main(){
	AquA;
	int q;
	cin >> q;
	while(q--){
		int n;
		cin >> n;
		v.clear();
		v.resize(n);
		for(int i=1;i<n;i++){
			int a,b;
			cin >> a >> b;
			a--;
			b--;
			v[a].ch.push_back(b);
			v[b].ch.push_back(a);
		}
		dfs(0,0);
		int m;
		cin >> m;
		vector<vector<int> > f(m);
		vector<pair<int,int> > t;
		for(int i=0;i<m;i++){
			int a,b;
			cin >> a >> b;
			a--;
			b--;
			v[a].s.push_back(i);
			v[b].t.push_back(i);
			vector<int> c,d;
			while(v[a].dep>v[b].dep){
				c.push_back(a);
				a=v[a].fa;
			}
			while(v[b].dep>v[a].dep){
				d.push_back(b);
				b=v[b].fa;
			}
			if(a==b){
				c.push_back(a);
				for(auto h:c){
					f[i].push_back(h);
				}
				reverse(d.begin(),d.end());
				for(auto h:d){
					f[i].push_back(h);
				}
				continue;
			}
			while(a!=b){
				c.push_back(a);
				d.push_back(b);
				a=v[a].fa;
				b=v[b].fa;
			}
			c.push_back(a);
			for(auto h:c){
				f[i].push_back(h);
			}
			reverse(d.begin(),d.end());
			for(auto h:d){
				f[i].push_back(h);
			}
		}	
		TOPO tp;
		tp.init(m);
		for(int i=0;i<m;i++){
			auto h=f[i];
			for(auto y:h){
				for(auto z:v[y].s){
					if(z!=i){
						tp.add(z,i);
					}
				}
				for(auto z:v[y].t){
					if(z!=i){
						tp.add(i,z);
					}
				}
			}
		}
		if(tp.solve()){
			cout << "Yes\n";
		}
		else{
			cout << "No\n";
		}
	}
	return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 11 ms 340 KB Output is correct
5 Correct 24 ms 348 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 6 ms 500 KB Output is correct
9 Correct 257 ms 17004 KB Output is correct
10 Correct 1184 ms 257060 KB Output is correct
11 Correct 8 ms 344 KB Output is correct
12 Correct 84 ms 392 KB Output is correct
13 Correct 284 ms 91092 KB Output is correct
14 Correct 341 ms 118840 KB Output is correct
15 Runtime error 3264 ms 1048576 KB Execution killed with signal 9
16 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 2 ms 332 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 2 ms 332 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 364 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 2 ms 332 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 2 ms 332 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 2 ms 388 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 2 ms 336 KB Output is correct
28 Correct 1 ms 212 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 2 ms 332 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 2 ms 332 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 2 ms 388 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 2 ms 336 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 6 ms 588 KB Output is correct
30 Correct 4 ms 340 KB Output is correct
31 Correct 4 ms 416 KB Output is correct
32 Correct 4 ms 468 KB Output is correct
33 Correct 2 ms 340 KB Output is correct
34 Correct 4 ms 340 KB Output is correct
35 Correct 6 ms 444 KB Output is correct
36 Correct 3 ms 340 KB Output is correct
37 Correct 2 ms 340 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 2 ms 332 KB Output is correct
5 Correct 2 ms 340 KB Output is correct
6 Correct 2 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 2 ms 340 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 2 ms 340 KB Output is correct
11 Correct 2 ms 332 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 2 ms 340 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 2 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 2 ms 388 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 2 ms 336 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 6 ms 588 KB Output is correct
30 Correct 4 ms 340 KB Output is correct
31 Correct 4 ms 416 KB Output is correct
32 Correct 4 ms 468 KB Output is correct
33 Correct 2 ms 340 KB Output is correct
34 Correct 4 ms 340 KB Output is correct
35 Correct 6 ms 444 KB Output is correct
36 Correct 3 ms 340 KB Output is correct
37 Correct 2 ms 340 KB Output is correct
38 Correct 248 ms 17004 KB Output is correct
39 Correct 1234 ms 257004 KB Output is correct
40 Correct 130 ms 4116 KB Output is correct
41 Correct 38 ms 1108 KB Output is correct
42 Correct 95 ms 4924 KB Output is correct
43 Correct 26 ms 1108 KB Output is correct
44 Correct 16 ms 580 KB Output is correct
45 Correct 49 ms 13948 KB Output is correct
46 Correct 53 ms 13928 KB Output is correct
47 Correct 256 ms 59100 KB Output is correct
48 Correct 267 ms 61320 KB Output is correct
49 Correct 57 ms 16432 KB Output is correct
50 Correct 60 ms 16460 KB Output is correct
51 Correct 42 ms 14412 KB Output is correct
52 Correct 37 ms 14372 KB Output is correct
53 Correct 13 ms 1456 KB Output is correct
54 Correct 66 ms 13532 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 324 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 324 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 9 ms 372 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 2 ms 340 KB Output is correct
13 Correct 37 ms 364 KB Output is correct
14 Correct 41 ms 344 KB Output is correct
15 Correct 45 ms 340 KB Output is correct
16 Correct 67 ms 16224 KB Output is correct
17 Correct 230 ms 32300 KB Output is correct
18 Correct 616 ms 65556 KB Output is correct
19 Correct 92 ms 18604 KB Output is correct
20 Correct 84 ms 18636 KB Output is correct
21 Correct 95 ms 18628 KB Output is correct
22 Correct 189 ms 33608 KB Output is correct
23 Correct 154 ms 33656 KB Output is correct
24 Correct 177 ms 34180 KB Output is correct
25 Correct 165 ms 34420 KB Output is correct
26 Correct 164 ms 34376 KB Output is correct
27 Correct 233 ms 35096 KB Output is correct
28 Correct 210 ms 35072 KB Output is correct
29 Correct 213 ms 35084 KB Output is correct
30 Correct 131 ms 24196 KB Output is correct
31 Correct 141 ms 24212 KB Output is correct
32 Correct 133 ms 24144 KB Output is correct
33 Correct 137 ms 24264 KB Output is correct

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 11 ms 340 KB Output is correct
5 Correct 24 ms 348 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 2 ms 340 KB Output is correct
8 Correct 6 ms 500 KB Output is correct
9 Correct 257 ms 17004 KB Output is correct
10 Correct 1184 ms 257060 KB Output is correct
11 Correct 8 ms 344 KB Output is correct
12 Correct 84 ms 392 KB Output is correct
13 Correct 284 ms 91092 KB Output is correct
14 Correct 341 ms 118840 KB Output is correct
15 Runtime error 3264 ms 1048576 KB Execution killed with signal 9
16 Halted 0 ms 0 KB -