Submission #513742

# Submission time Handle Problem Language Result Execution time Memory
513742 2022-01-17T13:31:10 Z ahmeteren Paths (BOI18_paths) C++17
100 / 100
447 ms 98332 KB
#include<bits/stdc++.h>
using namespace std;

#define ll long long
const int N = 3e5 + 5;

ll dp[N][(1 << 5)], c[N];
vector<int> vec[N];

ll dfs(int node, int mask)
{
	if((mask & (1 << c[node])) == 0)
		return 0;
	if(mask == (1 << c[node]))
		return 1;
	if(dp[node][mask] != -1)
		return dp[node][mask];

	dp[node][mask] = 0;

	for(auto to : vec[node])
	{
		dp[node][mask] += dfs(to, mask ^ (1 << c[node]));
	}

	return dp[node][mask];
}

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);

	// #ifndef ONLINE_JUDGE
	// 	freopen("in.txt", "r", stdin);
	// 	freopen("out.txt", "w", stdout);
	// #endif

	int n, m, k;
	cin >> n >> m >> k;

	for(int i = 1; i <= n; i++)
	{
		cin >> c[i];
		c[i]--;
	}

	for(int i = 1; i <= m; i++)
	{
		int u, v;
		cin >> u >> v;

		vec[u].push_back(v);
		vec[v].push_back(u);
	}

	memset(dp, -1, sizeof(dp));

	ll cevap = 0;

	for(int i = 1; i <= n; i++)
	{
		for(int j = 1; j < (1 << k); j++)
		{
			cevap += dfs(i, j);
		}
	}

	cout << cevap - n << '\n';
	return 0;
}
# Verdict Execution time Memory Grader output
1 Correct 31 ms 82492 KB Output is correct
2 Correct 36 ms 82496 KB Output is correct
3 Correct 30 ms 82444 KB Output is correct
4 Correct 31 ms 82456 KB Output is correct
5 Correct 32 ms 82492 KB Output is correct
6 Correct 31 ms 82508 KB Output is correct
7 Correct 32 ms 82500 KB Output is correct
8 Correct 32 ms 82508 KB Output is correct
9 Correct 31 ms 82512 KB Output is correct
10 Correct 32 ms 82440 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 111 ms 88984 KB Output is correct
2 Correct 88 ms 88328 KB Output is correct
3 Correct 313 ms 97684 KB Output is correct
4 Correct 128 ms 90440 KB Output is correct
5 Correct 145 ms 90512 KB Output is correct
6 Correct 253 ms 95168 KB Output is correct
7 Correct 327 ms 97612 KB Output is correct
8 Correct 376 ms 98332 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 31 ms 82492 KB Output is correct
2 Correct 36 ms 82496 KB Output is correct
3 Correct 30 ms 82444 KB Output is correct
4 Correct 31 ms 82456 KB Output is correct
5 Correct 32 ms 82492 KB Output is correct
6 Correct 31 ms 82508 KB Output is correct
7 Correct 32 ms 82500 KB Output is correct
8 Correct 32 ms 82508 KB Output is correct
9 Correct 31 ms 82512 KB Output is correct
10 Correct 32 ms 82440 KB Output is correct
11 Correct 111 ms 88984 KB Output is correct
12 Correct 88 ms 88328 KB Output is correct
13 Correct 313 ms 97684 KB Output is correct
14 Correct 128 ms 90440 KB Output is correct
15 Correct 145 ms 90512 KB Output is correct
16 Correct 253 ms 95168 KB Output is correct
17 Correct 327 ms 97612 KB Output is correct
18 Correct 376 ms 98332 KB Output is correct
19 Correct 101 ms 88908 KB Output is correct
20 Correct 89 ms 88292 KB Output is correct
21 Correct 352 ms 97660 KB Output is correct
22 Correct 122 ms 90432 KB Output is correct
23 Correct 110 ms 90416 KB Output is correct
24 Correct 209 ms 95244 KB Output is correct
25 Correct 339 ms 97600 KB Output is correct
26 Correct 297 ms 98244 KB Output is correct
27 Correct 111 ms 88368 KB Output is correct
28 Correct 139 ms 89708 KB Output is correct
29 Correct 447 ms 97684 KB Output is correct
30 Correct 344 ms 93428 KB Output is correct
31 Correct 379 ms 93496 KB Output is correct
32 Correct 403 ms 97624 KB Output is correct
33 Correct 32 ms 82496 KB Output is correct
34 Correct 31 ms 82440 KB Output is correct
35 Correct 30 ms 82484 KB Output is correct
36 Correct 38 ms 82492 KB Output is correct
37 Correct 37 ms 82476 KB Output is correct
38 Correct 30 ms 82472 KB Output is correct
39 Correct 42 ms 82492 KB Output is correct
40 Correct 35 ms 82488 KB Output is correct
41 Correct 35 ms 82488 KB Output is correct
42 Correct 34 ms 82488 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 38 ms 82500 KB Output is correct
2 Correct 75 ms 84368 KB Output is correct
3 Correct 77 ms 84308 KB Output is correct
4 Correct 109 ms 87412 KB Output is correct
5 Correct 96 ms 88068 KB Output is correct
6 Correct 188 ms 87488 KB Output is correct
7 Correct 88 ms 84320 KB Output is correct
8 Correct 127 ms 87412 KB Output is correct
9 Correct 100 ms 88048 KB Output is correct
10 Correct 113 ms 87996 KB Output is correct
11 Correct 141 ms 85756 KB Output is correct
12 Correct 131 ms 87140 KB Output is correct
13 Correct 135 ms 85960 KB Output is correct
14 Correct 158 ms 87356 KB Output is correct
15 Correct 175 ms 87508 KB Output is correct
16 Correct 36 ms 82384 KB Output is correct
17 Correct 35 ms 82492 KB Output is correct
18 Correct 35 ms 82408 KB Output is correct
19 Correct 35 ms 82476 KB Output is correct
20 Correct 38 ms 82488 KB Output is correct
21 Correct 40 ms 82492 KB Output is correct
22 Correct 36 ms 82508 KB Output is correct
23 Correct 36 ms 82504 KB Output is correct
24 Correct 35 ms 82412 KB Output is correct
25 Correct 44 ms 82472 KB Output is correct