Cod sursa(job #2745621)
Utilizator | Edward Ghiuzan Ghiuzanu | Data | 26 aprilie 2021 20:48:17 |
---|---|---|---|
Problema | Hashuri | Scor | 60 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.48 kb |
#include <iostream>
#include <fstream>
#include <unordered_map>
using namespace std;
unordered_map<long long, long long> h;
long long n, x, y;
int main() {
ifstream fin("hashuri.in");
ofstream fout("hashuri.out");
fin>>n;
for (int i = 0; i < n; ++i) {
fin>>y>>x;
if(y == 1 && h[x] != 1)
h[x] = 1;
else if (y == 2 && h[x] == 1)
h[x] = 0;
else if (y == 3){
fout<<h[x]<<endl;
}
}
return 0;
}