제출 #1318178

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1318178		lucageorgescu	Easter Eggs (info1cup17_eastereggs)	C++20	컴파일 에러	0 ms	0 KiB

eastereggs

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

using namespace std;

int x=1;

void dfs(int nod, int par)
{
    ord.push_back(nod);

    for (auto v:gr[nod] )
        if ( v!=par )
           dfs(v,nod);
}

int findEgg(int n, vector <pair<int,int> > bridges)
{
    for (int i=1; i<=n; i++ ) 
        gr[i].clear();
	ord.clear();
	
    for (auto pi:bridges )
    {
        int xixi=pi.first;
        int y=pi.second;
        
        gr[xixi].push_back(y);
        gr[y].push_back(xixi);
    }

    for (int i=1; i<=n; i++ )
        if ( gr[i].size()==1 ) {
           x=i;
           break;
    }

    dfs(x,0);

    /*for (int i=0; i<ord.size(); i++ )
        cout << ord[i] << " ";*/

    int st=0, dr=n-1, rez=0;
    while ( st<=dr ) 
    {
        int mij=(st+dr)/2;
        if ( query(vector <int> (ord.begin(),ord.begin()+mij+1))==1 ) 
        {
            rez=mij;
            dr=mij-1;
        }
        else st=mij+1;
    }
    
    return ord[rez];
}

컴파일 시 표준 에러 (stderr) 메시지

eastereggs.cpp: In function 'void dfs(int, int)':
eastereggs.cpp:10:5: error: 'ord' was not declared in this scope
   10 |     ord.push_back(nod);
      |     ^~~
eastereggs.cpp:12:17: error: 'gr' was not declared in this scope
   12 |     for (auto v:gr[nod] )
      |                 ^~
eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:20:9: error: 'gr' was not declared in this scope
   20 |         gr[i].clear();
      |         ^~
eastereggs.cpp:21:9: error: 'ord' was not declared in this scope
   21 |         ord.clear();
      |         ^~~
eastereggs.cpp:28:9: error: 'gr' was not declared in this scope
   28 |         gr[xixi].push_back(y);
      |         ^~
eastereggs.cpp:33:14: error: 'gr' was not declared in this scope
   33 |         if ( gr[i].size()==1 ) {
      |              ^~