제출 #1059046

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1059046		vjudge1	사이버랜드 (APIO23_cyberland)	C++17	0 / 100	56 ms	5724 KiB

cyberland

#include <bits/stdc++.h>

using namespace std;

int dist[100001];

void dijkstra(vector<pair<int,int>> adj[],int i)
{
    priority_queue<pair<int,int>> pq;
    pq.push({-0,i});
    dist[i]=0;
    while(pq.size()>0)
    {

        int a=-pq.top().first,b=pq.top().second;
        pq.pop();
        for(auto it : adj[b])
        {
            if(dist[it.first]==-1 || (dist[it.first]>dist[b]+it.second))
            {
                dist[it.first]=dist[b]+it.second;
                pq.push({-dist[it.first],it.first});
            }
        }
    }

}

double solve(int N, int M, int K, int H, std::vector<int> x, std::vector<int>
y, std::vector<int> c, std::vector<int> arr)
{
    memset(dist,-1,sizeof(dist));
    vector<pair<int,int>> adj[N+1];
    for(int i=0;i<x.size();i++)
    {
        int a=x[i],b=y[i],cc=c[i];
        adj[a].push_back({b,cc});
        adj[b].push_back({a,cc});
    }
    dijkstra(adj,0);
    return dist[H];

}

컴파일 시 표준 에러 (stderr) 메시지

cyberland.cpp: In function 'void dijkstra(std::vector<std::pair<int, int> >*, int)':
cyberland.cpp:15:13: warning: unused variable 'a' [-Wunused-variable]
   15 |         int a=-pq.top().first,b=pq.top().second;
      |             ^
cyberland.cpp: In function 'double solve(int, int, int, int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
cyberland.cpp:34:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |     for(int i=0;i<x.size();i++)
      |                 ~^~~~~~~~~

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