oj.uz

Submission #57199

# Submission time Handle Problem Language Result Execution time Memory
57199 2018-07-14T09:07:18 Z Crown Toy Train (IOI17_train) C++14
38 / 100
 2000 ms 2988 KB 
#include "train.h"
#include <bits/stdc++.h>
using namespace std;
#define X first
#define Y second
#define pb push_back
typedef long long ll;
typedef pair<int, int> ii;

const int maxn = 5005;

int out[maxn];
int inq[maxn];
int proc[maxn];
int Who_wins[maxn];
bool vis[maxn];

vector<int> A;
vector<int> R;
vector<int> adj[maxn];
vector<int> rev[maxn];
vector<int> bic[maxn];
vector<int> U, V;

int n, m;

vector<int> f(int is_a, vector<int> &all, vector<int> &s)
{
	for(auto u : all)
	{
		inq[u] = 0;
		out[u] = 0;
		for(auto v : adj[u])
		{
			if(!proc[v]) out[u]++;
		}
	}	
	queue<int> q;
	for(auto u : s)
	{
		inq[u] = true;
		q.push(u);
	}
	while(!q.empty())
	{
		int u = q.front(); q.pop();
		for(auto v : rev[u])
		{
			if(inq[v] || proc[v]) continue;
			out[v]--;
			if(A[v] == is_a)
			{
				inq[v] = true;
				q.push(v);
			}
			else if(out[v] == 0)
			{
				inq[v] = true;
				q.push(v);
			}
		}
	}
	vector<int> res;
	for(auto u : all) if(inq[u]) res.pb(u);
	return res;
}

void dfs(int u, vector<int> &all, vector<int> &charge)
{
	all.pb(u); 
	if(R[u]) charge.pb(u);
	for(auto v : bic[u])
		if(!vis[v] && !proc[v])
		{
			vis[v] = true;
			dfs(v, all, charge);
		}
}

vector<int> who_wins(vector<int> a, vector<int> r, vector<int> _U, vector<int> _V)
{
	A = a; R = r;
	U = _U; V = _V;
	n = a.size(), m = _U.size();
	for(int i = 0; i< m; i++)
	{
		int u = _U[i], v = _V[i];
		adj[u].pb(v); rev[v].pb(u);
		bic[u].pb(v); bic[v].pb(u);
	}
	queue< pair<vector<int>, vector<int> > > Q;
	for(int i = 0; i< n; i++)
	{
		if(vis[i]) continue;
		vis[i] = true;
		vector<int> all, charge;
		dfs(i, all, charge);
		Q.push(make_pair(all, charge));
	}
	while(!Q.empty())
	{
		vector<int> all = Q.front().X, charge = Q.front().Y; Q.pop();
		// for(auto u : all) printf("%d ", u); printf("\n");
		// for(auto u : charge) printf("c%d ", u); printf("\n");
		vector<int> f_a = f(1, all, charge);
		sort(f_a.begin(), f_a.end());
		vector<int> x;
		if(all.size() == f_a.size())
		{
			for(auto u : all) proc[u] = true;
			for(auto u : all) Who_wins[u] = true;
			continue;
		}
		for(auto u : all)
		{
			if(!binary_search(f_a.begin(), f_a.end(), u)) x.pb(u); 
		}
		vector<int> f_b = f(0, all, x);
		for(auto u : f_b)
		{
			proc[u] = 1;
		}
		for(auto u : all) vis[u] = false;
		for(auto u : all)
		{
			if(vis[u] || proc[u]) continue;
			vis[u] = true;
			vector<int> All, Charge;
			dfs(u, All, Charge);
			//for(auto u : All) printf("**%d ", u); printf("\n");
			//for(auto u : Charge) printf("***%d ", u); printf("\n");
			Q.push(make_pair(All, Charge));
		}
	}
	vector<int> res(n);
	for(int i = 0; i< n; i++) res[i] = Who_wins[i];
	return res;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 1912 KB Output is correct
2 Correct 18 ms 1912 KB Output is correct
3 Correct 19 ms 1912 KB Output is correct
4 Correct 16 ms 1912 KB Output is correct
5 Correct 14 ms 1912 KB Output is correct
6 Correct 20 ms 1912 KB Output is correct
7 Correct 15 ms 1912 KB Output is correct
8 Correct 13 ms 1912 KB Output is correct
9 Correct 16 ms 1912 KB Output is correct
10 Correct 18 ms 2032 KB Output is correct
11 Correct 19 ms 2160 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2160 KB Output is correct
2 Correct 3 ms 2160 KB Output is correct
3 Correct 3 ms 2160 KB Output is correct
4 Correct 3 ms 2160 KB Output is correct
5 Correct 3 ms 2160 KB Output is correct
6 Correct 1 ms 2160 KB Output is correct
7 Correct 1 ms 2160 KB Output is correct
8 Correct 3 ms 2160 KB Output is correct
9 Correct 3 ms 2160 KB Output is correct
10 Correct 4 ms 2160 KB Output is correct
11 Correct 3 ms 2160 KB Output is correct
12 Correct 3 ms 2160 KB Output is correct
13 Correct 4 ms 2160 KB Output is correct
14 Correct 3 ms 2160 KB Output is correct
15 Correct 3 ms 2160 KB Output is correct
16 Correct 1 ms 2160 KB Output is correct
17 Correct 4 ms 2160 KB Output is correct
18 Correct 3 ms 2160 KB Output is correct
19 Correct 3 ms 2160 KB Output is correct
20 Correct 3 ms 2160 KB Output is correct

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 732 ms 2908 KB Output is correct
2 Correct 1172 ms 2908 KB Output is correct
3 Correct 1425 ms 2988 KB Output is correct
4 Correct 32 ms 2988 KB Output is correct
5 Correct 33 ms 2988 KB Output is correct
6 Correct 30 ms 2988 KB Output is correct
7 Correct 25 ms 2988 KB Output is correct
8 Correct 24 ms 2988 KB Output is correct
9 Correct 27 ms 2988 KB Output is correct
10 Correct 20 ms 2988 KB Output is correct
11 Correct 25 ms 2988 KB Output is correct
12 Correct 19 ms 2988 KB Output is correct
13 Correct 24 ms 2988 KB Output is correct
14 Correct 26 ms 2988 KB Output is correct
15 Correct 20 ms 2988 KB Output is correct
16 Correct 22 ms 2988 KB Output is correct
17 Correct 28 ms 2988 KB Output is correct
18 Execution timed out 2055 ms 2988 KB Time limit exceeded

Subtask #4
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 2988 KB Output is correct
2 Correct 22 ms 2988 KB Output is correct
3 Correct 21 ms 2988 KB Output is correct
4 Correct 22 ms 2988 KB Output is correct
5 Correct 19 ms 2988 KB Output is correct
6 Correct 20 ms 2988 KB Output is correct
7 Correct 21 ms 2988 KB Output is correct
8 Correct 18 ms 2988 KB Output is correct
9 Correct 21 ms 2988 KB Output is correct
10 Correct 27 ms 2988 KB Output is correct
11 Correct 29 ms 2988 KB Output is correct
12 Correct 27 ms 2988 KB Output is correct
13 Correct 23 ms 2988 KB Output is correct
14 Correct 26 ms 2988 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 2988 KB Output is correct
2 Correct 28 ms 2988 KB Output is correct
3 Correct 33 ms 2988 KB Output is correct
4 Correct 26 ms 2988 KB Output is correct
5 Correct 4 ms 2988 KB Output is correct
6 Correct 7 ms 2988 KB Output is correct
7 Correct 15 ms 2988 KB Output is correct
8 Correct 14 ms 2988 KB Output is correct
9 Correct 14 ms 2988 KB Output is correct
10 Correct 5 ms 2988 KB Output is correct
11 Correct 13 ms 2988 KB Output is correct

Subtask #6
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 1912 KB Output is correct
2 Correct 18 ms 1912 KB Output is correct
3 Correct 19 ms 1912 KB Output is correct
4 Correct 16 ms 1912 KB Output is correct
5 Correct 14 ms 1912 KB Output is correct
6 Correct 20 ms 1912 KB Output is correct
7 Correct 15 ms 1912 KB Output is correct
8 Correct 13 ms 1912 KB Output is correct
9 Correct 16 ms 1912 KB Output is correct
10 Correct 18 ms 2032 KB Output is correct
11 Correct 19 ms 2160 KB Output is correct
12 Correct 4 ms 2160 KB Output is correct
13 Correct 3 ms 2160 KB Output is correct
14 Correct 3 ms 2160 KB Output is correct
15 Correct 3 ms 2160 KB Output is correct
16 Correct 3 ms 2160 KB Output is correct
17 Correct 1 ms 2160 KB Output is correct
18 Correct 1 ms 2160 KB Output is correct
19 Correct 3 ms 2160 KB Output is correct
20 Correct 3 ms 2160 KB Output is correct
21 Correct 4 ms 2160 KB Output is correct
22 Correct 3 ms 2160 KB Output is correct
23 Correct 3 ms 2160 KB Output is correct
24 Correct 4 ms 2160 KB Output is correct
25 Correct 3 ms 2160 KB Output is correct
26 Correct 3 ms 2160 KB Output is correct
27 Correct 1 ms 2160 KB Output is correct
28 Correct 4 ms 2160 KB Output is correct
29 Correct 3 ms 2160 KB Output is correct
30 Correct 3 ms 2160 KB Output is correct
31 Correct 3 ms 2160 KB Output is correct
32 Correct 732 ms 2908 KB Output is correct
33 Correct 1172 ms 2908 KB Output is correct
34 Correct 1425 ms 2988 KB Output is correct
35 Correct 32 ms 2988 KB Output is correct
36 Correct 33 ms 2988 KB Output is correct
37 Correct 30 ms 2988 KB Output is correct
38 Correct 25 ms 2988 KB Output is correct
39 Correct 24 ms 2988 KB Output is correct
40 Correct 27 ms 2988 KB Output is correct
41 Correct 20 ms 2988 KB Output is correct
42 Correct 25 ms 2988 KB Output is correct
43 Correct 19 ms 2988 KB Output is correct
44 Correct 24 ms 2988 KB Output is correct
45 Correct 26 ms 2988 KB Output is correct
46 Correct 20 ms 2988 KB Output is correct
47 Correct 22 ms 2988 KB Output is correct
48 Correct 28 ms 2988 KB Output is correct
49 Execution timed out 2055 ms 2988 KB Time limit exceeded