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Submission #488101

# Submission time Handle Problem Language Result Execution time Memory
488101 2021-11-17T17:21:40 Z MohamedAhmed04 Paths (BOI18_paths) C++14
100 / 100
 421 ms 172328 KB 
#include <bits/stdc++.h>

using namespace std ;

const int MAX = 3e5 + 10 ;

int arr[MAX] ;
int n , m , k ;

vector< vector<int> >adj(MAX) ;

long long dp[MAX][64] ;

void dfs(int node , int mask)
{
	if(dp[node][mask])
		return ;
	dp[node][mask] = 1 ;
	for(auto &child : adj[node])
	{
		if((mask & (1 << arr[child])))
			continue ;
		dfs(child , mask | (1 << arr[child])) ;
		dp[node][mask] += dp[child][mask | (1 << arr[child])] ;
	}
}

int main()
{
	ios_base::sync_with_stdio(0) ;
	cin.tie(0) ;
	cin>>n>>m>>k ;
	for(int i = 1 ; i <= n ; ++i)
	{
		cin>>arr[i] ;
		arr[i]-- ;
	}
	for(int i = 0 ; i < m ; ++i)
	{
		int x , y ;
		cin>>x>>y ;
		adj[x].push_back(y) ;
		adj[y].push_back(x) ;
	}
	long long ans = 0 ;
	for(int i = 1 ; i <= n ; ++i)
	{
		dfs(i , (1 << arr[i])) ;
		ans += dp[i][(1 << arr[i])] - 1 ;
	}
	return cout<<ans<<"\n" , 0 ;
}

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7372 KB Output is correct
2 Correct 4 ms 7372 KB Output is correct
3 Correct 4 ms 7372 KB Output is correct
4 Correct 4 ms 7372 KB Output is correct
5 Correct 4 ms 7372 KB Output is correct
6 Correct 4 ms 7372 KB Output is correct
7 Correct 3 ms 7372 KB Output is correct
8 Correct 4 ms 7372 KB Output is correct
9 Correct 4 ms 7372 KB Output is correct
10 Correct 4 ms 7372 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 13444 KB Output is correct
2 Correct 57 ms 11372 KB Output is correct
3 Correct 352 ms 171312 KB Output is correct
4 Correct 128 ms 30280 KB Output is correct
5 Correct 103 ms 30188 KB Output is correct
6 Correct 236 ms 119456 KB Output is correct
7 Correct 337 ms 171616 KB Output is correct
8 Correct 376 ms 172292 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7372 KB Output is correct
2 Correct 4 ms 7372 KB Output is correct
3 Correct 4 ms 7372 KB Output is correct
4 Correct 4 ms 7372 KB Output is correct
5 Correct 4 ms 7372 KB Output is correct
6 Correct 4 ms 7372 KB Output is correct
7 Correct 3 ms 7372 KB Output is correct
8 Correct 4 ms 7372 KB Output is correct
9 Correct 4 ms 7372 KB Output is correct
10 Correct 4 ms 7372 KB Output is correct
11 Correct 66 ms 13444 KB Output is correct
12 Correct 57 ms 11372 KB Output is correct
13 Correct 352 ms 171312 KB Output is correct
14 Correct 128 ms 30280 KB Output is correct
15 Correct 103 ms 30188 KB Output is correct
16 Correct 236 ms 119456 KB Output is correct
17 Correct 337 ms 171616 KB Output is correct
18 Correct 376 ms 172292 KB Output is correct
19 Correct 65 ms 16348 KB Output is correct
20 Correct 52 ms 13512 KB Output is correct
21 Correct 353 ms 171596 KB Output is correct
22 Correct 118 ms 30332 KB Output is correct
23 Correct 116 ms 30268 KB Output is correct
24 Correct 221 ms 119472 KB Output is correct
25 Correct 337 ms 171616 KB Output is correct
26 Correct 364 ms 172328 KB Output is correct
27 Correct 61 ms 13640 KB Output is correct
28 Correct 93 ms 18656 KB Output is correct
29 Correct 421 ms 171652 KB Output is correct
30 Correct 257 ms 92876 KB Output is correct
31 Correct 307 ms 92864 KB Output is correct
32 Correct 395 ms 171644 KB Output is correct
33 Correct 4 ms 7300 KB Output is correct
34 Correct 4 ms 7376 KB Output is correct
35 Correct 4 ms 7384 KB Output is correct
36 Correct 5 ms 7376 KB Output is correct
37 Correct 4 ms 7376 KB Output is correct
38 Correct 4 ms 7392 KB Output is correct
39 Correct 4 ms 7376 KB Output is correct
40 Correct 4 ms 7376 KB Output is correct
41 Correct 4 ms 7376 KB Output is correct
42 Correct 4 ms 7376 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7372 KB Output is correct
2 Correct 33 ms 8676 KB Output is correct
3 Correct 21 ms 8720 KB Output is correct
4 Correct 98 ms 60528 KB Output is correct
5 Correct 71 ms 61336 KB Output is correct
6 Correct 113 ms 60612 KB Output is correct
7 Correct 23 ms 8636 KB Output is correct
8 Correct 102 ms 60536 KB Output is correct
9 Correct 101 ms 61268 KB Output is correct
10 Correct 112 ms 61244 KB Output is correct
11 Correct 84 ms 34416 KB Output is correct
12 Correct 69 ms 47972 KB Output is correct
13 Correct 78 ms 34464 KB Output is correct
14 Correct 136 ms 60576 KB Output is correct
15 Correct 119 ms 60652 KB Output is correct
16 Correct 5 ms 7372 KB Output is correct
17 Correct 4 ms 7372 KB Output is correct
18 Correct 4 ms 7372 KB Output is correct
19 Correct 4 ms 7372 KB Output is correct
20 Correct 4 ms 7372 KB Output is correct
21 Correct 4 ms 7404 KB Output is correct
22 Correct 4 ms 7372 KB Output is correct
23 Correct 4 ms 7372 KB Output is correct
24 Correct 4 ms 7372 KB Output is correct
25 Correct 4 ms 7244 KB Output is correct