제출 #1201270

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1201270		PagodePaiva	봉쇄 시간 (IOI23_closing)	C++20	컴파일 에러	0 ms	0 KiB

closing

#include "closing.h"
#include<bits/stdc++.h>

using namespace std;
const int N = 200010;

vector <pair <int, int>> g[N];
int mark[N];

int max_score(int n, int X, int Y, long long K,
              std::vector<int> U, std::vector<int> V, std::vector<int> W){
    for(int i = 0;i < n-1;i++){
        g[U[i]].push_back({V[i], W[i]});
        g[V[i]].push_back({U[i], W[i]});
    }
    int ans = 0;
    priority_queue <pair <int, int>> pq;
    for(auto [v, w] : g[X]){
        pq.push_back({-w, v});
    }
    for(auto [v, w] : g[Y]){
        pq.push_back({-w, v});
    }
    int ans = 0, sum = 0;;
    while(!pq.empty()){
        auto [w, v] = pq.top();
        pq.pop();
        if(mark[v])
            continue;
        w *= -1;
        if(sum+w > k){
            return ans;
        }
        sum += w;
        ans++;
        mark[v] = 1;
        for(auto [x, ww] : g[v]){
            if(mark[x])
                continue;
            pq.push({-(ww+w), x});
        }
    }
    return ans;
}

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:19:12: error: 'class std::priority_queue<std::pair<int, int> >' has no member named 'push_back'
   19 |         pq.push_back({-w, v});
      |            ^~~~~~~~~
closing.cpp:22:12: error: 'class std::priority_queue<std::pair<int, int> >' has no member named 'push_back'
   22 |         pq.push_back({-w, v});
      |            ^~~~~~~~~
closing.cpp:24:9: error: redeclaration of 'int ans'
   24 |     int ans = 0, sum = 0;;
      |         ^~~
closing.cpp:16:9: note: 'int ans' previously declared here
   16 |     int ans = 0;
      |         ^~~
closing.cpp:31:20: error: 'k' was not declared in this scope
   31 |         if(sum+w > k){
      |                    ^