oj.uz

답안 #57198

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
57198 2018-07-14T09:06:46 Z Crown 장난감 기차 (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

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 1912 KB Output is correct
2 Correct 16 ms 1912 KB Output is correct
3 Correct 15 ms 1912 KB Output is correct
4 Correct 16 ms 1912 KB Output is correct
5 Correct 18 ms 1952 KB Output is correct
6 Correct 17 ms 1952 KB Output is correct
7 Correct 17 ms 1952 KB Output is correct
8 Correct 12 ms 1952 KB Output is correct
9 Correct 19 ms 1952 KB Output is correct
10 Correct 15 ms 1972 KB Output is correct
11 Correct 17 ms 2196 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2196 KB Output is correct
2 Correct 3 ms 2196 KB Output is correct
3 Correct 4 ms 2196 KB Output is correct
4 Correct 2 ms 2196 KB Output is correct
5 Correct 3 ms 2196 KB Output is correct
6 Correct 3 ms 2196 KB Output is correct
7 Correct 1 ms 2196 KB Output is correct
8 Correct 3 ms 2196 KB Output is correct
9 Correct 3 ms 2196 KB Output is correct
10 Correct 3 ms 2196 KB Output is correct
11 Correct 3 ms 2196 KB Output is correct
12 Correct 3 ms 2196 KB Output is correct
13 Correct 3 ms 2196 KB Output is correct
14 Correct 3 ms 2196 KB Output is correct
15 Correct 3 ms 2196 KB Output is correct
16 Correct 3 ms 2196 KB Output is correct
17 Correct 3 ms 2196 KB Output is correct
18 Correct 3 ms 2196 KB Output is correct
19 Correct 3 ms 2196 KB Output is correct
20 Correct 3 ms 2196 KB Output is correct

Subtask #3
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 701 ms 2988 KB Output is correct
2 Correct 1256 ms 2988 KB Output is correct
3 Correct 1453 ms 2988 KB Output is correct
4 Correct 25 ms 2988 KB Output is correct
5 Correct 26 ms 2988 KB Output is correct
6 Correct 30 ms 2988 KB Output is correct
7 Correct 22 ms 2988 KB Output is correct
8 Correct 28 ms 2988 KB Output is correct
9 Correct 16 ms 2988 KB Output is correct
10 Correct 21 ms 2988 KB Output is correct
11 Correct 23 ms 2988 KB Output is correct
12 Correct 23 ms 2988 KB Output is correct
13 Correct 28 ms 2988 KB Output is correct
14 Correct 30 ms 2988 KB Output is correct
15 Correct 25 ms 2988 KB Output is correct
16 Correct 25 ms 2988 KB Output is correct
17 Correct 30 ms 2988 KB Output is correct
18 Execution timed out 2005 ms 2988 KB Time limit exceeded

Subtask #4
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 2988 KB Output is correct
2 Correct 24 ms 2988 KB Output is correct
3 Correct 28 ms 2988 KB Output is correct
4 Correct 28 ms 2988 KB Output is correct
5 Correct 25 ms 2988 KB Output is correct
6 Correct 29 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 22 ms 2988 KB Output is correct
10 Correct 24 ms 2988 KB Output is correct
11 Correct 24 ms 2988 KB Output is correct
12 Correct 25 ms 2988 KB Output is correct
13 Correct 27 ms 2988 KB Output is correct
14 Correct 25 ms 2988 KB Output is correct

Subtask #5
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 23 ms 2988 KB Output is correct
2 Correct 25 ms 2988 KB Output is correct
3 Correct 30 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 13 ms 2988 KB Output is correct
7 Correct 16 ms 2988 KB Output is correct
8 Correct 13 ms 2988 KB Output is correct
9 Correct 15 ms 2988 KB Output is correct
10 Correct 6 ms 2988 KB Output is correct
11 Correct 12 ms 2988 KB Output is correct

Subtask #6
0 / 51.0

# 결과 실행 시간 메모리 Grader output
1 Correct 18 ms 1912 KB Output is correct
2 Correct 16 ms 1912 KB Output is correct
3 Correct 15 ms 1912 KB Output is correct
4 Correct 16 ms 1912 KB Output is correct
5 Correct 18 ms 1952 KB Output is correct
6 Correct 17 ms 1952 KB Output is correct
7 Correct 17 ms 1952 KB Output is correct
8 Correct 12 ms 1952 KB Output is correct
9 Correct 19 ms 1952 KB Output is correct
10 Correct 15 ms 1972 KB Output is correct
11 Correct 17 ms 2196 KB Output is correct
12 Correct 2 ms 2196 KB Output is correct
13 Correct 3 ms 2196 KB Output is correct
14 Correct 4 ms 2196 KB Output is correct
15 Correct 2 ms 2196 KB Output is correct
16 Correct 3 ms 2196 KB Output is correct
17 Correct 3 ms 2196 KB Output is correct
18 Correct 1 ms 2196 KB Output is correct
19 Correct 3 ms 2196 KB Output is correct
20 Correct 3 ms 2196 KB Output is correct
21 Correct 3 ms 2196 KB Output is correct
22 Correct 3 ms 2196 KB Output is correct
23 Correct 3 ms 2196 KB Output is correct
24 Correct 3 ms 2196 KB Output is correct
25 Correct 3 ms 2196 KB Output is correct
26 Correct 3 ms 2196 KB Output is correct
27 Correct 3 ms 2196 KB Output is correct
28 Correct 3 ms 2196 KB Output is correct
29 Correct 3 ms 2196 KB Output is correct
30 Correct 3 ms 2196 KB Output is correct
31 Correct 3 ms 2196 KB Output is correct
32 Correct 701 ms 2988 KB Output is correct
33 Correct 1256 ms 2988 KB Output is correct
34 Correct 1453 ms 2988 KB Output is correct
35 Correct 25 ms 2988 KB Output is correct
36 Correct 26 ms 2988 KB Output is correct
37 Correct 30 ms 2988 KB Output is correct
38 Correct 22 ms 2988 KB Output is correct
39 Correct 28 ms 2988 KB Output is correct
40 Correct 16 ms 2988 KB Output is correct
41 Correct 21 ms 2988 KB Output is correct
42 Correct 23 ms 2988 KB Output is correct
43 Correct 23 ms 2988 KB Output is correct
44 Correct 28 ms 2988 KB Output is correct
45 Correct 30 ms 2988 KB Output is correct
46 Correct 25 ms 2988 KB Output is correct
47 Correct 25 ms 2988 KB Output is correct
48 Correct 30 ms 2988 KB Output is correct
49 Execution timed out 2005 ms 2988 KB Time limit exceeded