Submission #1105304

#	Time	Username	Problem	Language	Result	Execution time	Memory
1105304		Zone_zonee	Crocodile's Underground City (IOI11_crocodile)	C++17	0 / 100	1 ms	6736 KiB

crocodile

#include <bits/stdc++.h>
#include "crocodile.h"
using namespace std;
#define MAX_N 50000
#define MAX_M 10000000

vector<pair<int, long long>> adj[MAX_N];
long long dis[MAX_N];
int travel_plan(int N, int M, int R[][2], int L[], int K, int P[]){
  for(int i = 0; i < M; ++i){
    adj[R[i][0]].emplace_back(R[i][1], L[i]);
    adj[R[i][1]].emplace_back(R[i][0], L[i]);
  }
  memset(dis, 0x3f, sizeof dis);
  priority_queue<pair<long long, int>> pq;
  pq.emplace(0, 0);
  dis[0] = 0;
  while(!pq.empty()){
    auto [d, u] = pq.top(); pq.pop();
    for(auto [v, w] : adj[u]){
      if(dis[v] > d + w){
        pq.emplace(dis[v] = d + w, v);
      }
    }
  }
  long long res = 0;
  for(int i = 0; i < K; ++i) res = max(res, dis[P[i]]);
  return res;
}

• Subtask 1: 0 / 46
• Subtask 2: 0 / 43
• Subtask 3: 0 / 11