Cod sursa(job #2745986)
Utilizator | Data | 27 aprilie 2021 12:42:11 | |
---|---|---|---|
Problema | Hashuri | Scor | 0 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.47 kb |
#include <bits/stdc++.h>
#include <ext/hash_set>
#include <iostream>
#include <fstream>
using namespace std;
using namespace __gnu_cxx;
ifstream f("hashuri.in");
ofstream g("hashuri.out");
long x, op, N ,i;
hash_set <long long> multime;
int main()
{
f >> N;
for (i = 0; i < N; i++)
{
f >> op >> x;
if (op == 1)
multime.insert(x);
if (op == 2)
multime.erase(x);
if (op == 3)
g << (multime.find(x) != multime.end()) << endl;
}
}