oj.uz

Submission #220548

# Submission time Handle Problem Language Result Execution time Memory
220548 2020-04-08T04:28:54 Z anonymous Crocodile's Underground City (IOI11_crocodile) C++14
0 / 100
 9 ms 7552 KB 
#include "crocodile.h"
#include <iostream>
#include <vector>
#include <queue>
#include<set>
#include <utility>
#define MAXN 100005
using namespace std;
vector<pair<int,int> > adj[MAXN];
int dp[MAXN]; //min, second min, number of adj
bool done[MAXN];
set <int> V[MAXN];
priority_queue <pair<int,int> > PQ;
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[])
{
  for (int i=0; i<N; i++) {
    dp[i]  = 2e9 + 10;
  }
  for (int i=0; i<K; i++) {
      dp[P[i]] =  0;
      PQ.push({0,P[i]});
  }
  for (int i=0; i<M; i++) {
        adj[R[i][0]].push_back({R[i][1], L[i]});
        adj[R[i][1]].push_back({R[i][0], L[i]});
  }
  while (PQ.size()) {
    int cur = PQ.top().second;
    dp[cur] = min(dp[cur], -PQ.top().first);
    PQ.pop();
    if (done[cur]) {continue;}
    done[cur] = true;
    for (auto v: adj[cur]) {
        if (!done[v.first]) {
            V[v.first].insert(dp[cur] + v.second);
            if (V[v.first].size() >= 2) {
                auto it = ++V[v.first].begin();
                PQ.push({-(*it), v.first});
            }
        }
    }
  }
  return(dp[0]);
}

Subtask #1
0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 7424 KB Output is correct
2 Correct 8 ms 7424 KB Output is correct
3 Correct 9 ms 7424 KB Output is correct
4 Incorrect 9 ms 7552 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 7424 KB Output is correct
2 Correct 8 ms 7424 KB Output is correct
3 Correct 9 ms 7424 KB Output is correct
4 Incorrect 9 ms 7552 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 7424 KB Output is correct
2 Correct 8 ms 7424 KB Output is correct
3 Correct 9 ms 7424 KB Output is correct
4 Incorrect 9 ms 7552 KB Output isn't correct
5 Halted 0 ms 0 KB -