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Submission #927219

# Submission time Handle Problem Language Result Execution time Memory
927219 2024-02-14T12:43:03 Z vjudge1 Paths (BOI18_paths) C++17
100 / 100
 485 ms 85840 KB 
#include <bits/stdc++.h>

using namespace std;

#define all(a) a.begin(),a.end()
#define pb push_back
#define vt vector
#define endl '\n'
typedef long long ll;

const ll mod=1e9+7;
const ll inf=1e9+7;
const int N=3e5+4;

int n,m,k,a[N],used[N];
ll res=0;
ll dp[(1<<6)][N];
vt<int>g[N];

void solve(){
	cin>>n>>m>>k;
	for(int i=1; i<=n; ++i) {
		cin>>a[i];
		a[i]--;
		dp[(1<<a[i])][i]=1;
	}
	for(int i=1; i<=m; ++i){
		int u,v;
		cin>>u>>v;
		g[u].pb(v);
		g[v].pb(u);
	}
	for(int mask=0; mask<(1<<k); ++mask){
		for(int v=1; v<=n; ++v){
			for(int to:g[v]){
				if(a[to]!=a[v] && ((mask>>a[to])&1)==0) dp[mask|(1<<a[to])][to]+=dp[mask][v];
			}
		}
	}
	ll ans=0;
	for(int mask=1; mask<(1<<k); ++mask){
	for(int v=1; v<=n; ++v){
		ans+=dp[mask][v];
	}
	}
	cout<<ans-n<<endl;
}
			
int main(){
	int tt=1;
	//cin>>tt;
	while(tt--) {
		solve();
	}
}

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 39516 KB Output is correct
2 Correct 6 ms 39772 KB Output is correct
3 Correct 4 ms 23128 KB Output is correct
4 Correct 3 ms 15092 KB Output is correct
5 Correct 2 ms 10844 KB Output is correct
6 Correct 6 ms 39516 KB Output is correct
7 Correct 6 ms 39516 KB Output is correct
8 Correct 6 ms 39516 KB Output is correct
9 Correct 4 ms 33372 KB Output is correct
10 Correct 3 ms 23132 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 134 ms 26704 KB Output is correct
2 Correct 117 ms 26748 KB Output is correct
3 Correct 317 ms 36692 KB Output is correct
4 Correct 148 ms 19496 KB Output is correct
5 Correct 138 ms 15720 KB Output is correct
6 Correct 234 ms 35092 KB Output is correct
7 Correct 315 ms 36712 KB Output is correct
8 Correct 329 ms 37304 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 39516 KB Output is correct
2 Correct 6 ms 39772 KB Output is correct
3 Correct 4 ms 23128 KB Output is correct
4 Correct 3 ms 15092 KB Output is correct
5 Correct 2 ms 10844 KB Output is correct
6 Correct 6 ms 39516 KB Output is correct
7 Correct 6 ms 39516 KB Output is correct
8 Correct 6 ms 39516 KB Output is correct
9 Correct 4 ms 33372 KB Output is correct
10 Correct 3 ms 23132 KB Output is correct
11 Correct 134 ms 26704 KB Output is correct
12 Correct 117 ms 26748 KB Output is correct
13 Correct 317 ms 36692 KB Output is correct
14 Correct 148 ms 19496 KB Output is correct
15 Correct 138 ms 15720 KB Output is correct
16 Correct 234 ms 35092 KB Output is correct
17 Correct 315 ms 36712 KB Output is correct
18 Correct 329 ms 37304 KB Output is correct
19 Correct 159 ms 26704 KB Output is correct
20 Correct 115 ms 26704 KB Output is correct
21 Correct 325 ms 36952 KB Output is correct
22 Correct 148 ms 19280 KB Output is correct
23 Correct 129 ms 15268 KB Output is correct
24 Correct 242 ms 34948 KB Output is correct
25 Correct 298 ms 36788 KB Output is correct
26 Correct 317 ms 37712 KB Output is correct
27 Correct 139 ms 43088 KB Output is correct
28 Correct 168 ms 43772 KB Output is correct
29 Correct 441 ms 55440 KB Output is correct
30 Correct 288 ms 52056 KB Output is correct
31 Correct 301 ms 52516 KB Output is correct
32 Correct 485 ms 55124 KB Output is correct
33 Correct 5 ms 39512 KB Output is correct
34 Correct 5 ms 39516 KB Output is correct
35 Correct 4 ms 23132 KB Output is correct
36 Correct 3 ms 14940 KB Output is correct
37 Correct 2 ms 10844 KB Output is correct
38 Correct 5 ms 39516 KB Output is correct
39 Correct 5 ms 39516 KB Output is correct
40 Correct 5 ms 39532 KB Output is correct
41 Correct 5 ms 33368 KB Output is correct
42 Correct 3 ms 23132 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 57948 KB Output is correct
2 Correct 70 ms 73552 KB Output is correct
3 Correct 40 ms 24144 KB Output is correct
4 Correct 100 ms 28556 KB Output is correct
5 Correct 76 ms 29128 KB Output is correct
6 Correct 161 ms 85780 KB Output is correct
7 Correct 50 ms 40720 KB Output is correct
8 Correct 112 ms 46676 KB Output is correct
9 Correct 86 ms 47568 KB Output is correct
10 Correct 97 ms 47308 KB Output is correct
11 Correct 111 ms 84584 KB Output is correct
12 Correct 105 ms 83516 KB Output is correct
13 Correct 134 ms 82724 KB Output is correct
14 Correct 166 ms 85840 KB Output is correct
15 Correct 164 ms 85840 KB Output is correct
16 Correct 5 ms 39512 KB Output is correct
17 Correct 5 ms 39516 KB Output is correct
18 Correct 4 ms 23132 KB Output is correct
19 Correct 3 ms 15192 KB Output is correct
20 Correct 2 ms 10844 KB Output is correct
21 Correct 5 ms 39516 KB Output is correct
22 Correct 5 ms 39528 KB Output is correct
23 Correct 5 ms 39512 KB Output is correct
24 Correct 4 ms 33372 KB Output is correct
25 Correct 4 ms 23132 KB Output is correct