Cod sursa(job #1527518)

Utilizator Andrei121Andrei Ghigheci Andrei121 Data 18 noiembrie 2015 11:29:10
Problema Cautare binara Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 1.21 kb
#include <fstream>
int v[100001];
int cautbin0(int x , int n)
{
    int i , pas , k=-1;
    pas=1<<16;
    i=0;
    while(pas!=0)
    {
        if(v[i+pas]==x and i+pas <=n)
        {
            k=i+pas;
            i+=pas;
            pas/=2;
        }
    }
    return k ;
}
int cautbin1 (int x , int n)
{
    int i , pas,k;
    pas=1<<16;
    i=0;
    while(pas!=0)
    {
        if(v[i+pas]<=x and i+pas<=n)
        {
            k=i+pas;
            i+=pas;
            pas/=2;
        }
    }
    return i;
}
int cautbin2 (int x , int n)
{
    int i , pas;
    pas=1<<16;
    i=0;
    while(pas!=0)
    {
        if(v[i+pas]<x and i+pas <=n)
        {
            i+=pas;
            pas/=2;
        }
    }
    return i+1;
}
using namespace std;
ifstream in ("cautbin.in");
ofstream out ("cautbin.out");
int main()
{
    int n,i,m,sol,tip;
    in >> n;
       for(i=1; i<=n; i++)
    {
        in >> v[i];
    }
    in >> m;
    for(i=1; i<=m; i++)
    {
        in >> tip >> sol ;
        if(tip==0)
        {
            out << cautbin0(sol,n);
        }
        if(tip==1)
        {
            out << cautbin1(sol,n);
        }
        if(tip==2)
        {
            out << cautbin2(sol,n);
        }
    }
    return 0;
}