oj.uz

Submission #631409

# Submission time Handle Problem Language Result Execution time Memory
631409 2022-08-18T05:47:21 Z LittleCube Jail (JOI22_jail) C++14
72 / 100
 5000 ms 832252 KB 
#include <bits/stdc++.h>
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define F first
#define S second
using namespace std;

int T, N, M, pre[1200005], dis[1200005], s[1200005], e[1200005], deg[1200005], fr[1200005], to[1200005];
vector<int> E[1200005], topo[1200005];

void dfs(int u)
{
	for(int v : E[u])
		if(pre[u] != v)
		{
			pre[v] = u;
			dis[v] = dis[u] + 1;
			dfs(v);
		}
}

void addedge(int pos, int i)
{
	if(s[pos] && s[pos] != i)
		topo[s[pos]].emplace_back(i);
	if(e[pos] && e[pos] != i)
		topo[i].emplace_back(e[pos]);
}

void solve()
{
	cin >> N;
	for(int i = 1; i <= N; i++)
	{
		pre[i] = dis[i] = s[i] = e[i] = 0;
		E[i].clear();
	}
	for(int i = 1; i < N; i++)
	{
		int u, v;
		cin >> u >> v;
		E[u].emplace_back(v);
		E[v].emplace_back(u);
	}
	cin >> M;
	for(int i = 1; i <= M; i++)
	{
		deg[i] = 0;
		topo[i].clear();
	}
	dfs(1);
	for(int i = 1; i <= M; i++)
	{
		cin >> fr[i] >> to[i];
		s[fr[i]] = i;
		e[to[i]] = i;
	}
	for(int i = 1; i <= M; i++)
	{
		addedge(fr[i], i);
		addedge(to[i], i);
		while(fr[i] != to[i])
		{
			if(dis[fr[i]] < dis[to[i]])
				swap(fr[i], to[i]);
			fr[i] = pre[fr[i]];
			addedge(fr[i], i);
		}
	}
	for(int i = 1; i <= M; i++)
		for(int j : topo[i])
			deg[j]++;
	queue<int> q;
	for(int i = 1; i <= M; i++)
		if(deg[i] == 0)
			q.emplace(i);
	for(int t = 1; t <= M; t++)
	{
		if(q.empty())
		{
			cout << "No\n";
			return;
		}
		int u = q.front();
		q.pop();
		for(int v : topo[u])
		{
			deg[v]--;
			if(deg[v] == 0)
				q.emplace(v);
		}
	}
	cout << "Yes\n";
}



signed main()
{
	ios::sync_with_stdio(0);
	cin.tie(0), cout.tie(0);
	cin >> T;
	while(T--)
	{
		solve();
	}
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 56732 KB Output is correct
2 Correct 27 ms 56680 KB Output is correct
3 Correct 28 ms 56660 KB Output is correct
4 Correct 35 ms 56720 KB Output is correct
5 Correct 42 ms 56676 KB Output is correct
6 Correct 29 ms 56656 KB Output is correct
7 Correct 28 ms 56720 KB Output is correct
8 Correct 40 ms 56824 KB Output is correct
9 Correct 149 ms 59308 KB Output is correct
10 Correct 329 ms 71184 KB Output is correct
11 Correct 33 ms 56728 KB Output is correct
12 Correct 62 ms 56744 KB Output is correct
13 Correct 203 ms 100172 KB Output is correct
14 Correct 217 ms 113936 KB Output is correct
15 Execution timed out 5087 ms 832252 KB Time limit exceeded
16 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 56660 KB Output is correct
2 Correct 31 ms 56728 KB Output is correct
3 Correct 30 ms 56688 KB Output is correct
4 Correct 31 ms 56696 KB Output is correct
5 Correct 29 ms 56724 KB Output is correct
6 Correct 28 ms 56632 KB Output is correct
7 Correct 29 ms 56632 KB Output is correct
8 Correct 35 ms 56716 KB Output is correct
9 Correct 31 ms 56744 KB Output is correct
10 Correct 29 ms 56668 KB Output is correct
11 Correct 31 ms 56660 KB Output is correct
12 Correct 34 ms 56660 KB Output is correct
13 Correct 29 ms 56656 KB Output is correct

Subtask #3
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 56660 KB Output is correct
2 Correct 31 ms 56728 KB Output is correct
3 Correct 30 ms 56688 KB Output is correct
4 Correct 31 ms 56696 KB Output is correct
5 Correct 29 ms 56724 KB Output is correct
6 Correct 28 ms 56632 KB Output is correct
7 Correct 29 ms 56632 KB Output is correct
8 Correct 35 ms 56716 KB Output is correct
9 Correct 31 ms 56744 KB Output is correct
10 Correct 29 ms 56668 KB Output is correct
11 Correct 31 ms 56660 KB Output is correct
12 Correct 34 ms 56660 KB Output is correct
13 Correct 29 ms 56656 KB Output is correct
14 Correct 35 ms 56732 KB Output is correct
15 Correct 28 ms 56660 KB Output is correct
16 Correct 28 ms 56748 KB Output is correct
17 Correct 31 ms 56660 KB Output is correct
18 Correct 33 ms 56652 KB Output is correct
19 Correct 31 ms 56812 KB Output is correct
20 Correct 29 ms 56644 KB Output is correct
21 Correct 29 ms 56724 KB Output is correct
22 Correct 29 ms 56684 KB Output is correct
23 Correct 28 ms 56700 KB Output is correct
24 Correct 29 ms 56696 KB Output is correct
25 Correct 36 ms 56620 KB Output is correct
26 Correct 35 ms 56704 KB Output is correct
27 Correct 32 ms 56660 KB Output is correct
28 Correct 29 ms 56612 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 56660 KB Output is correct
2 Correct 31 ms 56728 KB Output is correct
3 Correct 30 ms 56688 KB Output is correct
4 Correct 31 ms 56696 KB Output is correct
5 Correct 29 ms 56724 KB Output is correct
6 Correct 28 ms 56632 KB Output is correct
7 Correct 29 ms 56632 KB Output is correct
8 Correct 35 ms 56716 KB Output is correct
9 Correct 31 ms 56744 KB Output is correct
10 Correct 29 ms 56668 KB Output is correct
11 Correct 31 ms 56660 KB Output is correct
12 Correct 34 ms 56660 KB Output is correct
13 Correct 29 ms 56656 KB Output is correct
14 Correct 35 ms 56732 KB Output is correct
15 Correct 28 ms 56660 KB Output is correct
16 Correct 28 ms 56748 KB Output is correct
17 Correct 31 ms 56660 KB Output is correct
18 Correct 33 ms 56652 KB Output is correct
19 Correct 31 ms 56812 KB Output is correct
20 Correct 29 ms 56644 KB Output is correct
21 Correct 29 ms 56724 KB Output is correct
22 Correct 29 ms 56684 KB Output is correct
23 Correct 28 ms 56700 KB Output is correct
24 Correct 29 ms 56696 KB Output is correct
25 Correct 36 ms 56620 KB Output is correct
26 Correct 35 ms 56704 KB Output is correct
27 Correct 32 ms 56660 KB Output is correct
28 Correct 29 ms 56612 KB Output is correct
29 Correct 30 ms 56780 KB Output is correct
30 Correct 29 ms 56768 KB Output is correct
31 Correct 30 ms 56696 KB Output is correct
32 Correct 30 ms 56660 KB Output is correct
33 Correct 28 ms 56744 KB Output is correct
34 Correct 29 ms 56720 KB Output is correct
35 Correct 30 ms 56812 KB Output is correct
36 Correct 29 ms 56696 KB Output is correct
37 Correct 28 ms 56708 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 56660 KB Output is correct
2 Correct 31 ms 56728 KB Output is correct
3 Correct 30 ms 56688 KB Output is correct
4 Correct 31 ms 56696 KB Output is correct
5 Correct 29 ms 56724 KB Output is correct
6 Correct 28 ms 56632 KB Output is correct
7 Correct 29 ms 56632 KB Output is correct
8 Correct 35 ms 56716 KB Output is correct
9 Correct 31 ms 56744 KB Output is correct
10 Correct 29 ms 56668 KB Output is correct
11 Correct 31 ms 56660 KB Output is correct
12 Correct 34 ms 56660 KB Output is correct
13 Correct 29 ms 56656 KB Output is correct
14 Correct 35 ms 56732 KB Output is correct
15 Correct 28 ms 56660 KB Output is correct
16 Correct 28 ms 56748 KB Output is correct
17 Correct 31 ms 56660 KB Output is correct
18 Correct 33 ms 56652 KB Output is correct
19 Correct 31 ms 56812 KB Output is correct
20 Correct 29 ms 56644 KB Output is correct
21 Correct 29 ms 56724 KB Output is correct
22 Correct 29 ms 56684 KB Output is correct
23 Correct 28 ms 56700 KB Output is correct
24 Correct 29 ms 56696 KB Output is correct
25 Correct 36 ms 56620 KB Output is correct
26 Correct 35 ms 56704 KB Output is correct
27 Correct 32 ms 56660 KB Output is correct
28 Correct 29 ms 56612 KB Output is correct
29 Correct 30 ms 56780 KB Output is correct
30 Correct 29 ms 56768 KB Output is correct
31 Correct 30 ms 56696 KB Output is correct
32 Correct 30 ms 56660 KB Output is correct
33 Correct 28 ms 56744 KB Output is correct
34 Correct 29 ms 56720 KB Output is correct
35 Correct 30 ms 56812 KB Output is correct
36 Correct 29 ms 56696 KB Output is correct
37 Correct 28 ms 56708 KB Output is correct
38 Correct 139 ms 59280 KB Output is correct
39 Correct 332 ms 71132 KB Output is correct
40 Correct 83 ms 58176 KB Output is correct
41 Correct 51 ms 57108 KB Output is correct
42 Correct 77 ms 58444 KB Output is correct
43 Correct 58 ms 57160 KB Output is correct
44 Correct 39 ms 56804 KB Output is correct
45 Correct 74 ms 62416 KB Output is correct
46 Correct 66 ms 62412 KB Output is correct
47 Correct 99 ms 66008 KB Output is correct
48 Correct 125 ms 66076 KB Output is correct
49 Correct 68 ms 62456 KB Output is correct
50 Correct 67 ms 62536 KB Output is correct
51 Correct 60 ms 63632 KB Output is correct
52 Correct 61 ms 63532 KB Output is correct
53 Correct 36 ms 57128 KB Output is correct
54 Correct 73 ms 62252 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 56688 KB Output is correct
2 Correct 31 ms 56712 KB Output is correct
3 Correct 30 ms 56696 KB Output is correct
4 Correct 30 ms 56660 KB Output is correct
5 Correct 34 ms 56652 KB Output is correct
6 Correct 31 ms 56712 KB Output is correct
7 Correct 30 ms 56660 KB Output is correct
8 Correct 32 ms 56732 KB Output is correct
9 Correct 34 ms 56712 KB Output is correct
10 Correct 31 ms 56672 KB Output is correct
11 Correct 31 ms 56656 KB Output is correct
12 Correct 31 ms 56660 KB Output is correct
13 Correct 44 ms 56720 KB Output is correct
14 Correct 50 ms 56736 KB Output is correct
15 Correct 51 ms 56652 KB Output is correct
16 Correct 74 ms 62932 KB Output is correct
17 Correct 145 ms 68544 KB Output is correct
18 Correct 342 ms 89084 KB Output is correct
19 Correct 85 ms 63036 KB Output is correct
20 Correct 78 ms 63064 KB Output is correct
21 Correct 75 ms 63000 KB Output is correct
22 Correct 120 ms 69272 KB Output is correct
23 Correct 126 ms 69812 KB Output is correct
24 Correct 110 ms 69304 KB Output is correct
25 Correct 109 ms 69444 KB Output is correct
26 Correct 110 ms 69448 KB Output is correct
27 Correct 114 ms 67908 KB Output is correct
28 Correct 117 ms 67908 KB Output is correct
29 Correct 107 ms 68008 KB Output is correct
30 Correct 84 ms 65184 KB Output is correct
31 Correct 81 ms 65096 KB Output is correct
32 Correct 99 ms 65096 KB Output is correct
33 Correct 95 ms 65180 KB Output is correct

Subtask #7
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 56732 KB Output is correct
2 Correct 27 ms 56680 KB Output is correct
3 Correct 28 ms 56660 KB Output is correct
4 Correct 35 ms 56720 KB Output is correct
5 Correct 42 ms 56676 KB Output is correct
6 Correct 29 ms 56656 KB Output is correct
7 Correct 28 ms 56720 KB Output is correct
8 Correct 40 ms 56824 KB Output is correct
9 Correct 149 ms 59308 KB Output is correct
10 Correct 329 ms 71184 KB Output is correct
11 Correct 33 ms 56728 KB Output is correct
12 Correct 62 ms 56744 KB Output is correct
13 Correct 203 ms 100172 KB Output is correct
14 Correct 217 ms 113936 KB Output is correct
15 Execution timed out 5087 ms 832252 KB Time limit exceeded
16 Halted 0 ms 0 KB -