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Submission #720324

# Submission time Handle Problem Language Result Execution time Memory
720324 2023-04-08T03:21:34 Z Yell0 Paths (BOI18_paths) C++17
100 / 100
 481 ms 30812 KB 
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
const int MN=3e5+2;
int N,M,K,c[MN],perm[6];
ll dp[6][MN],ans=0;
vector<int> gr[MN];

int main() {
  ios::sync_with_stdio(0);cin.tie(0);
  cin>>N>>M>>K;
  for(int i=1;i<=N;++i) cin>>c[i];
  for(int i=1,u,v;i<=M;++i) {
    cin>>u>>v;
    gr[u].push_back(v);
    gr[v].push_back(u);
  }
  iota(perm+1,perm+1+K,1);
  do {
    for(int u=1;u<=N;++u) dp[1][u]=c[u]==perm[1];
    for(int k=2;k<=K;++k) {
      for(int u=1;u<=N;++u) {
        dp[k][u]=0;
        if(c[u]!=perm[k]) continue;
        for(int v:gr[u]) dp[k][u]+=dp[k-1][v];
      }
      if(is_sorted(perm+1+k,perm+1+K))
        for(int u=1;u<=N;++u) ans+=dp[k][u];
    }
  } while(next_permutation(perm+1,perm+1+K));
  cout<<ans<<'\n';
  return 0;
}

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 4 ms 7380 KB Output is correct
6 Correct 4 ms 7380 KB Output is correct
7 Correct 4 ms 7388 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7384 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 13900 KB Output is correct
2 Correct 48 ms 13260 KB Output is correct
3 Correct 220 ms 28528 KB Output is correct
4 Correct 83 ms 15684 KB Output is correct
5 Correct 78 ms 15436 KB Output is correct
6 Correct 171 ms 24020 KB Output is correct
7 Correct 227 ms 28504 KB Output is correct
8 Correct 204 ms 28992 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 4 ms 7380 KB Output is correct
5 Correct 4 ms 7380 KB Output is correct
6 Correct 4 ms 7380 KB Output is correct
7 Correct 4 ms 7388 KB Output is correct
8 Correct 4 ms 7380 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7384 KB Output is correct
11 Correct 59 ms 13900 KB Output is correct
12 Correct 48 ms 13260 KB Output is correct
13 Correct 220 ms 28528 KB Output is correct
14 Correct 83 ms 15684 KB Output is correct
15 Correct 78 ms 15436 KB Output is correct
16 Correct 171 ms 24020 KB Output is correct
17 Correct 227 ms 28504 KB Output is correct
18 Correct 204 ms 28992 KB Output is correct
19 Correct 58 ms 13904 KB Output is correct
20 Correct 50 ms 13148 KB Output is correct
21 Correct 233 ms 28336 KB Output is correct
22 Correct 88 ms 15688 KB Output is correct
23 Correct 82 ms 15424 KB Output is correct
24 Correct 151 ms 23984 KB Output is correct
25 Correct 209 ms 28424 KB Output is correct
26 Correct 219 ms 29004 KB Output is correct
27 Correct 52 ms 13276 KB Output is correct
28 Correct 74 ms 14960 KB Output is correct
29 Correct 436 ms 30768 KB Output is correct
30 Correct 247 ms 22524 KB Output is correct
31 Correct 210 ms 22516 KB Output is correct
32 Correct 471 ms 30812 KB Output is correct
33 Correct 4 ms 7380 KB Output is correct
34 Correct 4 ms 7372 KB Output is correct
35 Correct 4 ms 7380 KB Output is correct
36 Correct 4 ms 7380 KB Output is correct
37 Correct 4 ms 7380 KB Output is correct
38 Correct 4 ms 7380 KB Output is correct
39 Correct 4 ms 7380 KB Output is correct
40 Correct 4 ms 7384 KB Output is correct
41 Correct 4 ms 7380 KB Output is correct
42 Correct 4 ms 7380 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 34 ms 9188 KB Output is correct
3 Correct 18 ms 9220 KB Output is correct
4 Correct 49 ms 14232 KB Output is correct
5 Correct 42 ms 14920 KB Output is correct
6 Correct 481 ms 15768 KB Output is correct
7 Correct 20 ms 9176 KB Output is correct
8 Correct 94 ms 15056 KB Output is correct
9 Correct 82 ms 15724 KB Output is correct
10 Correct 80 ms 15552 KB Output is correct
11 Correct 172 ms 12512 KB Output is correct
12 Correct 200 ms 14696 KB Output is correct
13 Correct 165 ms 12564 KB Output is correct
14 Correct 414 ms 15868 KB Output is correct
15 Correct 409 ms 16000 KB Output is correct
16 Correct 4 ms 7380 KB Output is correct
17 Correct 4 ms 7380 KB Output is correct
18 Correct 4 ms 7380 KB Output is correct
19 Correct 4 ms 7380 KB Output is correct
20 Correct 4 ms 7380 KB Output is correct
21 Correct 4 ms 7380 KB Output is correct
22 Correct 4 ms 7380 KB Output is correct
23 Correct 4 ms 7380 KB Output is correct
24 Correct 4 ms 7376 KB Output is correct
25 Correct 4 ms 7380 KB Output is correct