제출 #1353338

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1353338		nataliaa	Easter Eggs (info1cup17_eastereggs)	C++20	컴파일 에러	0 ms	0 KiB

eastereggs

#include <bits/stdc++.h>
#include "grader.h"
#define ff first
#define sc second
using namespace std;
vector<int> ok;
vector<int> v[515];
int vis[515];
void dfs(int u){
    vis[u] = 1;
    ok.push_back(u);
    for(auto i : v[u]){
        if(vis[i]==0) dfs(i);
    }
}
int findEgg (int n, vector < pair < int, int > > v1){
    ok.clear();
    v.clear();
    for(int i = 0; i<=514; i++) vis[i] = 0;
    for(int i = 0; i < n-1; i++) {
        int x = v1[i].ff, y = v1[i].sc;
        v[x].push_back(y);
        v[y].push_back(x);
    }
    ok.push_back(-1);
    dfs(1);
    int l = 1, r = n-1;
    int x = n;
    while(l<=r){
        vector<int>ans ;
        int m = (l+r)/2;
        for(int i  = l; i <= m; i++) ans.push_back(ok[i]);
        if(query(ans)) {r = m-1; x = m;}
        else l = m+1;
    }
    return ok[x];
}

컴파일 시 표준 에러 (stderr) 메시지

eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:18:7: error: request for member 'clear' in 'v', which is of non-class type 'std::vector<int> [515]'
   18 |     v.clear();
      |       ^~~~~