Submission #483637

#	Time	Username	Problem	Language	Result	Execution time	Memory
483637		alexdumitru	Easter Eggs (info1cup17_eastereggs)	C++14	Compilation error	0 ms	0 KiB

eastereggs

#include <iostream>
#include <vector>
#include <grader.h>
using namespace std;
vector<int> v[550];
vector<int> parcurgere;
int viz[550];
int query(vector<int> islands);
void dfs(int nod=1, int p=-1)
{
    parcurgere.push_back(nod);
    for(auto i:a[nod])if(i!=p)dfs(i,nod);
}
int findEgg(int N, vector<pair<int,int> > bridges)
{
    int st,r=N-1,poz=N,mi,dr,i,m=bridges.size();
    for(i=1;i<=N;i++)viz[i]=0;
    for(i=0;i<m;i++)
    {
        a[bridges[i].first].push_back(bridges[i].second);
        a[bridges[i].second].push_back(bridges[i].first);
    }
    dfs();
    st=0;
    dr=N-1;
    while(st<=dr)
    {
        mi=st+(dr-st)/2;
        if(query(vector<int>(parcurgere.begin(),parcurgere.begin()+mi+1)))
        {
            dr=mi-1;
            r=mi;
        }
        else st=mi+1;
    }
    return parcurgere[r];
}

Compilation message (stderr)

eastereggs.cpp: In function 'void dfs(int, int)':
eastereggs.cpp:12:16: error: 'a' was not declared in this scope
   12 |     for(auto i:a[nod])if(i!=p)dfs(i,nod);
      |                ^
eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:20:9: error: 'a' was not declared in this scope
   20 |         a[bridges[i].first].push_back(bridges[i].second);
      |         ^
eastereggs.cpp:16:18: warning: unused variable 'poz' [-Wunused-variable]
   16 |     int st,r=N-1,poz=N,mi,dr,i,m=bridges.size();
      |                  ^~~