제출 #979906

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
979906		vjudge1	봉쇄 시간 (IOI23_closing)	C++17	8 / 100	83 ms	20312 KiB

closing

#include "closing.h"
using namespace std;
#include <bits/stdc++.h>
#define pb push_back

using lli=long long;

int max_score(int N, int X, int Y, long long K,
              vector<int> U, vector<int> V, vector<int> W)
{
    vector<vector<pair<int,lli>>> adj (N);
    for(int i=0; i<N-1; ++i){
        adj[U[i]].pb({V[i], W[i]});
        adj[V[i]].pb({U[i], W[i]});
    }
    int ans=0;
    vector<bool> visited (N, false);
    priority_queue<pair<lli,int>, vector<pair<lli,int>>, greater<pair<lli,int>>> pq;
    pq.push({0, X});
    pq.push({0,Y});
    while(!pq.empty()){
        lli a=pq.top().first;
        lli b=pq.top().second;
        pq.pop();
        if(visited[b]) continue;
        if(K<a) break;
        ans++;
        visited[b]=true;
        K-=a;
        for(int i=0; i<adj[b].size(); ++i){
            if(!visited[adj[b][i].first]){
                pq.push({adj[b][i].second+a, adj[b][i].first});
            }
        }

    }
    return ans;
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

closing.cpp: In function 'int max_score(int, int, int, long long int, std::vector<int>, std::vector<int>, std::vector<int>)':
closing.cpp:30:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |         for(int i=0; i<adj[b].size(); ++i){
      |                      ~^~~~~~~~~~~~~~

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