Cod sursa(job #2759796)
Utilizator | Data | 20 iunie 2021 15:19:11 | |
---|---|---|---|
Problema | Hashuri | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.4 kb |
#include <bits/stdc++.h>
using namespace std;
unordered_set<string> s;
ifstream in("hashuri.in");
ofstream out("hashuri.out");
int main(){
int n;
in>>n;
for(;n;n--){
char c;
string x;
in>>c>>x;
if (c=='1'){s.insert(x);continue;}
if (c=='2'){s.erase(x);continue;}
if (c=='3'){out<<(s.find(x)!=s.end())<<'\n';continue;}
}
}