Cod sursa(job #479695)
Utilizator | Data | 24 august 2010 21:24:04 | |
---|---|---|---|
Problema | Hashuri | Scor | 70 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.38 kb |
#include <stdio.h>
#include <set>
using namespace std;
int n;
set <int> s;
int main()
{
freopen("hashuri.in", "r", stdin);
freopen("hashuri.out", "w", stdout);
int i, tip, x;
scanf("%d ", &n);
for (i = 1; i <= n; i++)
{
scanf("%d %d ", &tip, &x);
if (tip == 1) s.insert(x);
if (tip == 2) s.erase(x);
if (tip == 3) printf("%d\n", s.find(x) != s.end() );
}
return 0;
}