Cod sursa(job #2846661)
Utilizator | Pecherle George Pechi | Data | 9 februarie 2022 14:48:49 |
---|---|---|---|
Problema | Hashuri | Scor | 70 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.5 kb |
#include<iostream>
#include<fstream>
#include<unordered_map>
using namespace std;
ifstream fin("hashuri.in");
ofstream fout("hashuri.out");
unordered_map<int,int> mapa;
int n;
void operatie()
{
int tip,x;
fin>>tip>>x;
switch (tip) {
case 1: mapa[x]=1; break;
case 2: mapa.erase(x); break;
case 3: fout<<(mapa.find(x)!= mapa.end())<<'\n'; break;
}
return;
}
int main()
{
ios::sync_with_stdio(false);
fin>>n;
while(n--)
operatie();
return 0;
}