Submission #140662

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
140662	2019-08-04 10:35:00	eohomegrownapps	Crocodile's Underground City (IOI11_crocodile)	C++14	89 / 100	828 ms	77092 KiB

crocodile

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#include "crocodile.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll INF = 1e18;
vector<vector<pair<ll,ll> > > adjlist;
vector<ll> safe;
vector<ll> shortest;
vector<ll> secshortest;
ll n;
void dijkstra(){
  priority_queue<pair<ll,ll>,vector<pair<ll,ll> >,greater<pair<ll,ll> > > pq;
  for (ll i : safe){
    pq.push(make_pair(0,i));
  }
  while (pq.size()>0){
    auto f = pq.top();
    pq.pop();
    if (f.first>secshortest[f.second]){
      continue;
    }
    //cout<<"process "<<f.second<<endl;
    for (auto i : adjlist[f.second]){
      if (secshortest[i.second]>secshortest[f.second]+i.first){
        if (secshortest[f.second]+i.first<=shortest[i.second]){
          secshortest[i.second]=shortest[i.second];
          shortest[i.second]=secshortest[f.second]+i.first;
        } else {
          secshortest[i.second]=secshortest[f.second]+i.first;
 
 
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• Subtask 1: 46 / 46
• Subtask 2: 43 / 43
• Subtask 3: 0 / 11