Cod sursa(job #1801961)
Utilizator | Data | 9 noiembrie 2016 18:50:50 | |
---|---|---|---|
Problema | Hashuri | Scor | 70 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.55 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream fin("hashuri.in");
ofstream fout("hashuri.out");
set<int> s;
int n;
int main()
{
fin>>n;
for(int i=1;i<=n;i++){
int index,x;
fin>>index>>x;
if (index==1){
s.insert(x);
}
if (index==2){
s.erase(x);
}
if(index==3){
set<int>::iterator it;
it=s.find(x);
if (*it==x) fout <<1;
else fout <<0;
fout <<'\n';
}
}
return 0;
}