Submission #229798

#	Time	Username	Problem	Language	Result	Execution time	Memory
229798		quocnguyen1012	Crocodile's Underground City (IOI11_crocodile)	C++14	100 / 100	694 ms	74488 KiB

crocodile

#include <bits/stdc++.h>
#include <iostream>
using namespace std;
typedef int64_t llo;
#define mp make_pair
#define a first
#define b second
#define pb push_back
#include <crocodile.h>
llo ma=1000000001;
int travel_plan(int n,int m,int r[][2],int l[],int k,int p[]){
	llo vis[n];
	for(llo i=0;i<n;i++){
		vis[i]=0;
	}
	for(llo i=0;i<k;i++){
		vis[p[i]]=1;
	}
	vector<pair<llo,llo>> adj[n];
	for(llo i=0;i<m;i++){
		adj[r[i][0]].pb({r[i][1],(llo)l[i]});
		adj[r[i][1]].pb({r[i][0],(llo)l[i]});
	}
	llo dist[n];
	llo dist2[n];
	for(llo i=0;i<n;i++){
		dist[i]=ma;
		dist2[i]=ma;
	}
	priority_queue<pair<llo,llo>> ac;
	for(llo i=0;i<n;i++){
		if(vis[i]==1){
			dist[i]=0;
			dist2[i]=0;
			ac.push({0,i});
		}	
	}
	llo vis2[n];
	for(llo i=0;i<n;i++){
		vis2[i]=0;
	}
	while(ac.size()){
		pair<llo,llo> no=ac.top();
		ac.pop();
		no.a=-no.a;
		if(no.a>dist2[no.b]){
			continue;
		}
		for(auto j:adj[no.b]){
			llo co=dist2[no.b]+j.b;
			if(dist[j.a]>=co){
				llo acc=dist2[j.a];
				dist2[j.a]=dist[j.a];
				dist[j.a]=co;
				if(dist2[j.a]<acc and dist2[j.a]!=ma){
					ac.push({-dist2[j.a],j.a});
				}
			}
			else if(dist2[j.a]>co){
				dist2[j.a]=co;
				ac.push({-dist2[j.a],j.a});
			}
		}
	}
	return dist2[0];
}

Compilation message (stderr)

crocodile.cpp: In function 'int travel_plan(int, int, int (*)[2], int*, int, int*)':
crocodile.cpp:38:6: warning: variable 'vis2' set but not used [-Wunused-but-set-variable]
  llo vis2[n];
      ^~~~

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