Submission #480527

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
480527	2021-10-16T19:30:24 Z	Haidara	Easter Eggs (info1cup17_eastereggs)	C++17	Compilation error	0 ms	0 KB

eastereggs

#include<bits/stdc++.h>
#include<grader.h>
#define rep(i,x,n) for(int i=x;i<n;i++)
#define FOR(i,n) rep(i,0,n)
using namespace std;
vector<int>graph[maxn],ord;
void dfs(int st=1,int par=-1)
{
	ord.push_back(st);
    for(auto i:graph[st])
    {
    	if(i==par)
    		continue;
    	dfs(i,st);
    }
}
int findEgg(int n,vector< pair<int,int> >edges)
{
    for(auto i:edges)
    {
        graph[i.ff].push_back(i.ss);
        graph[i.ss].push_back(i.ff);
    }
    dfs();    
    int l=0,r=n-1;
    while(l<r)
    {
    	int mid=l+(r-l)/2;
    	if(query(vector<int>(ord.begin(),ord.begin()+mid)))
    		r=mid;
    	else 
    		l=mid+1;
    }
    return ord[r];
}

Compilation message

eastereggs.cpp:6:18: error: 'maxn' was not declared in this scope
    6 | vector<int>graph[maxn],ord;
      |                  ^~~~
eastereggs.cpp: In function 'void dfs(int, int)':
eastereggs.cpp:10:16: error: 'graph' was not declared in this scope; did you mean 'isgraph'?
   10 |     for(auto i:graph[st])
      |                ^~~~~
      |                isgraph
eastereggs.cpp: In function 'int findEgg(int, std::vector<std::pair<int, int> >)':
eastereggs.cpp:21:9: error: 'graph' was not declared in this scope; did you mean 'isgraph'?
   21 |         graph[i.ff].push_back(i.ss);
      |         ^~~~~
      |         isgraph
eastereggs.cpp:21:17: error: 'struct std::pair<int, int>' has no member named 'ff'
   21 |         graph[i.ff].push_back(i.ss);
      |                 ^~
eastereggs.cpp:21:33: error: 'struct std::pair<int, int>' has no member named 'ss'
   21 |         graph[i.ff].push_back(i.ss);
      |                                 ^~
eastereggs.cpp:22:17: error: 'struct std::pair<int, int>' has no member named 'ss'
   22 |         graph[i.ss].push_back(i.ff);
      |                 ^~
eastereggs.cpp:22:33: error: 'struct std::pair<int, int>' has no member named 'ff'
   22 |         graph[i.ss].push_back(i.ff);
      |                                 ^~