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Submission #564642

# Submission time Handle Problem Language Result Execution time Memory
564642 2022-05-19T12:27:00 Z Abrar_Al_Samit Paths (BOI18_paths) C++17
100 / 100
 354 ms 97164 KB 
#include<bits/stdc++.h>
using namespace std;

const int MX = 3e5 + 5;
vector<int>g[MX];
int n, m, k;
int tag[MX];

long long ans = 0;
long long dp[MX][32];

int bit(int x) {
  return __builtin_popcount(x);
}
long long solve(int v, int mask) {
  long long &ret = dp[v][mask];
  if(ret!=-1) return ret;
  ret = 0;
  if(bit(mask)>1) {
    ret = 1;
  }
  for(int u : g[v]) if(~mask>>tag[u]&1) {
    ret += solve(u, mask|(1<<tag[u]));
  }
  return ret;
}
void PlayGround() {
  cin>>n>>m>>k;
  for(int i=1; i<=n; ++i) {
    cin>>tag[i];
    --tag[i];
  }
  for(int i=0; i<m; ++i) {
    int u, v;
    cin>>u>>v;
    g[u].push_back(v);
    g[v].push_back(u);
  }

  if(k==1) {
    cout<<0<<'\n';
    return;
  }


  memset(dp, -1, sizeof dp);
  for(int i=1; i<=n; ++i) {
    ans += solve(i, (1<<tag[i]));
  }
  cout<<ans<<'\n';

}
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  PlayGround();
  return 0;
}

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 82508 KB Output is correct
2 Correct 32 ms 82380 KB Output is correct
3 Correct 32 ms 82404 KB Output is correct
4 Correct 32 ms 82436 KB Output is correct
5 Correct 4 ms 7372 KB Output is correct
6 Correct 32 ms 82380 KB Output is correct
7 Correct 33 ms 82504 KB Output is correct
8 Correct 33 ms 82452 KB Output is correct
9 Correct 31 ms 82516 KB Output is correct
10 Correct 31 ms 82428 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 96 ms 89004 KB Output is correct
2 Correct 87 ms 88368 KB Output is correct
3 Correct 294 ms 96576 KB Output is correct
4 Correct 113 ms 90316 KB Output is correct
5 Correct 76 ms 15180 KB Output is correct
6 Correct 209 ms 94472 KB Output is correct
7 Correct 311 ms 96540 KB Output is correct
8 Correct 306 ms 97092 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 82508 KB Output is correct
2 Correct 32 ms 82380 KB Output is correct
3 Correct 32 ms 82404 KB Output is correct
4 Correct 32 ms 82436 KB Output is correct
5 Correct 4 ms 7372 KB Output is correct
6 Correct 32 ms 82380 KB Output is correct
7 Correct 33 ms 82504 KB Output is correct
8 Correct 33 ms 82452 KB Output is correct
9 Correct 31 ms 82516 KB Output is correct
10 Correct 31 ms 82428 KB Output is correct
11 Correct 96 ms 89004 KB Output is correct
12 Correct 87 ms 88368 KB Output is correct
13 Correct 294 ms 96576 KB Output is correct
14 Correct 113 ms 90316 KB Output is correct
15 Correct 76 ms 15180 KB Output is correct
16 Correct 209 ms 94472 KB Output is correct
17 Correct 311 ms 96540 KB Output is correct
18 Correct 306 ms 97092 KB Output is correct
19 Correct 98 ms 88908 KB Output is correct
20 Correct 94 ms 88288 KB Output is correct
21 Correct 287 ms 96464 KB Output is correct
22 Correct 117 ms 90332 KB Output is correct
23 Correct 78 ms 15184 KB Output is correct
24 Correct 217 ms 94452 KB Output is correct
25 Correct 289 ms 96512 KB Output is correct
26 Correct 279 ms 97164 KB Output is correct
27 Correct 99 ms 88336 KB Output is correct
28 Correct 116 ms 89692 KB Output is correct
29 Correct 341 ms 96520 KB Output is correct
30 Correct 269 ms 92872 KB Output is correct
31 Correct 274 ms 92960 KB Output is correct
32 Correct 354 ms 96588 KB Output is correct
33 Correct 31 ms 82496 KB Output is correct
34 Correct 31 ms 82444 KB Output is correct
35 Correct 31 ms 82484 KB Output is correct
36 Correct 31 ms 82508 KB Output is correct
37 Correct 4 ms 7380 KB Output is correct
38 Correct 31 ms 82516 KB Output is correct
39 Correct 32 ms 82484 KB Output is correct
40 Correct 36 ms 82508 KB Output is correct
41 Correct 35 ms 82448 KB Output is correct
42 Correct 32 ms 82380 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 32 ms 82476 KB Output is correct
2 Correct 63 ms 84268 KB Output is correct
3 Correct 51 ms 84300 KB Output is correct
4 Correct 93 ms 87008 KB Output is correct
5 Correct 74 ms 87716 KB Output is correct
6 Correct 121 ms 87116 KB Output is correct
7 Correct 52 ms 84352 KB Output is correct
8 Correct 105 ms 87028 KB Output is correct
9 Correct 89 ms 87676 KB Output is correct
10 Correct 96 ms 87572 KB Output is correct
11 Correct 104 ms 85604 KB Output is correct
12 Correct 85 ms 86804 KB Output is correct
13 Correct 92 ms 85700 KB Output is correct
14 Correct 120 ms 87132 KB Output is correct
15 Correct 106 ms 87092 KB Output is correct
16 Correct 32 ms 82508 KB Output is correct
17 Correct 31 ms 82380 KB Output is correct
18 Correct 31 ms 82516 KB Output is correct
19 Correct 31 ms 82488 KB Output is correct
20 Correct 4 ms 7268 KB Output is correct
21 Correct 32 ms 82380 KB Output is correct
22 Correct 32 ms 82460 KB Output is correct
23 Correct 31 ms 82488 KB Output is correct
24 Correct 31 ms 82496 KB Output is correct
25 Correct 32 ms 82512 KB Output is correct