Mai intai trebuie sa te autentifici.
Cod sursa(job #1360490)
Utilizator | Data | 25 februarie 2015 15:31:24 | |
---|---|---|---|
Problema | Cautare binara | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 1.07 kb |
#include <iostream>
#include <fstream>
using namespace std;
int v[1000000],n;
const int l=16;
ifstream in("cautbin.in");
ofstream out("cautbin.out");
int cautbin0(int x)
{
int i=0,pas=1<<l;
while(pas!=0)
{
if(i+pas<=n && v[i+pas]<=x)
i+=pas;
pas/=2;
}
if(v[i]==x)
return i;
else
return -1;
}
int cautbin1(int x)
{
int i=0,pas=1<<l;
while(pas!=0)
{
if(i+pas<=n && v[i+pas]<=x)
i+=pas;
pas/=2;
}
return i;
}
int cautbin2(int x)
{
int i=0,pas=1<<l;
while(pas!=0)
{
if(i+pas<=n && v[i+pas]<x)
i+=pas;
pas/=2;
}
return 1+i;
}
int main ()
{
int m,tip,val;
in>>n;
for(int j=1;j<=n;j++)
in>>v[j];
in>>m;
for(int i=1;i<=m;i++)
{
in>>tip>>val;
if (tip==0)
out<<cautbin0(val)<<'\n';
if (tip==1)
out<<cautbin1(val)<<'\n';
if (tip==2)
out<<cautbin2(val)<<'\n';
}
return 0;
}