Cod sursa(job #1669053)

Utilizator Vasile_RotaruVasea Rotaru Vasile_Rotaru Data 30 martie 2016 12:15:52
Problema Hashuri Scor 70
Compilator cpp Status done
Runda Arhiva educationala Marime 0.34 kb
Raporteaza aceasta sursa 
#include<bits/stdc++.h>

using namespace std;

ifstream fin("hashuri.in");
ofstream fout("hashuri.out");

int N,i,x,c;
map<int,int>H;
int main()
{
	fin>>N;
	for(i=1;i<=N;++i)
	{
		fin>>c>>x;
		if(c==1)if(H[x]==0)++H[x];
		if(c==2)H.erase(x);
		if(c==3)if(H.find(x)!=H.end())fout<<1<<"\n";else fout<<0<<"\n";
	}
 	return 0;
}