Cod sursa(job #2759790)

Utilizator RobertAcAcatrinei Robert-Marian RobertAc Data 20 iunie 2021 14:59:14
Problema Hashuri Scor 70
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.34 kb
Raporteaza aceasta sursa 
#include <bits/stdc++.h>

using namespace std;
unordered_map<string,bool> m;
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')m[x]=1;
        else if(c=='2')m.erase(x);
        else out<<m[x]<<'\n';
    }
}