Cod sursa(job #2911628)

Utilizator BlaugranasEnal Gemaledin Blaugranas Data 30 iunie 2022 20:12:50
Problema Hashuri Scor 40
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.35 kb
Raporteaza aceasta sursa 
#include<bits/stdc++.h>
using namespace std;
ifstream F("hashuri.in");
ofstream G("hashuri.out");
int t,x;
set<int> m;
int main()
{
	for(F>>x;F>>t>>x;)
		if(t==1&&m.find(x)==m.end())
            m.insert(x);
		else if(t==2&&m.find(x)!=m.end())
            m.erase(x);
		else if(t==3)
            G<<(m.find(x)!=m.end())<<'\n';
	return 0;
}