Cod sursa(job #2776227)

Utilizator BlaugranasEnal Gemaledin Blaugranas Data 18 septembrie 2021 22:24:47
Problema Hashuri Scor 70
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.35 kb
Raporteaza aceasta sursa 
#include<fstream>
#include<map>
using namespace std;
ifstream F("hashuri.in");
ofstream G("hashuri.out");
int n,r,i,t,x;
map<int,int> m;
int main()
{
	F>>n;
	while(n--) {
		F>>t>>x;
		if(t==1&&m.find(x)==m.end())
            m[x]=++r;
		if(t==2)
            m.erase(x);
		if(t==3)
            G<<(m.find(x)!=m.end())<<"\n";
	}
	return 0;
}