Cod sursa(job #548727)
Utilizator | Z.Z.Daniel blastoise | Data | 7 martie 2011 18:50:43 |
---|---|---|---|
Problema | Hashuri | Scor | 70 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.45 kb |
#include <stdio.h>
#include <set>
#define MOD 99989
using namespace std;
set <int> v[99989];
int x,y,N,i;
int main()
{
freopen("hashuri.in","r",stdin);
freopen("hashuri.out","w",stdout);
scanf("%d",&N);
for(i=1;i<=N;i++)
{
scanf("%d%d",&x,&y);
if(x==1) v[y%MOD].insert(y);
else
if(x==2) v[y%MOD].erase(y);
else
if(v[y%MOD].find(y)!=v[y%MOD].end()) printf("1\n");
else printf("0\n");
}
return 0;
}