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Submission #641959

# Submission time Handle Problem Language Result Execution time Memory
641959 2022-09-18T03:23:11 Z makanhulia Cities (BOI16_cities) C++17
0 / 100
 6000 ms 24904 KB 
#include <bits/stdc++.h>

#define mp make_pair
#define int long long
#define pb push_back
#define STC stack <int>
#define pii pair <int, int>
#define vi vector <int>
#define vii vector <vi >
#define se second
#define fi first

using namespace std;
const int mod = 1e9 + 7;
const int MxN = 1e9 + 7;

signed main(){

  ios_base::sync_with_stdio(false);
  cout.tie(0);
  cin.tie(NULL);

  int n, k, m; cin >> n >> k >> m;
  vi P(k);
  vector <vector <pii>> N(n + 1);
  for(int i = 0; i < k; i++) cin >> P[i];
  for(int i = 0; i < m; i++){
    int a, b, c; cin >> a >> b >> c;
    N[a].pb({b, c});
    N[b].pb({a, c});
  }  

  int ans = LLONG_MAX;
  for(int i = 1; i <= n; i++){
    priority_queue <pii, vector <pii>, greater <pii>> Q;
    Q.push({0, i});
    vi V(n+1, 1e18);

    while(Q.size()){
      int val = Q.top().fi, cur = Q.top().se;
      Q.pop();

      if(V[cur] < val) continue;
      V[cur] = val;

      for(auto it : N[cur]){
        Q.push({val + it.se, it.fi});
      }
    }

    int sum = 0;
    for(int j = 0; j < k; j++) sum += V[P[j]];
    ans = min(ans, sum);
  }
  cout << ans << "\n";
}

Subtask #1
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 324 KB Output is correct
4 Incorrect 1 ms 212 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 6089 ms 24828 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 354 ms 536 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 6084 ms 24808 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 26.0

# Verdict Execution time Memory Grader output
1 Execution timed out 6028 ms 24904 KB Time limit exceeded
2 Halted 0 ms 0 KB -