Cod sursa(job #2073085)

Utilizator heeiyyoosarateanu armand heeiyyoo Data 22 noiembrie 2017 18:16:08
Problema Cautare binara Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.92 kb
#include <iostream>
#include<fstream>
using namespace std;
int v[100000];
const int L = 16;
int main()
{
    ifstream f("cautbin.in");
    ofstream o("cautbin.out");
    int n,m,r,pas,i,k,L,x;

    f >> n;
    for(i=1; i<=n; i++)
    {
        f >>v[i];
    }
    f >> m;
    for(i=1; i<=m; i++)
    {
        f >> k >> x;
        pas=1<<L;
        r=0;
        if (k == 0 || k == 1)
        {
            while(pas!=0)
            {
                if(r+pas<=n && v[r+pas]<=x)
                {
                    r+=pas;

                }
                pas/=2;
            }
            if(k == 0 && v[r]!=x)
            {
                r=-1;
            }
        }
        else
        {
            while(pas!=0)
            {
                if(r+pas<=n && v[r+pas]<x)
                {
                    r+=pas;

                }
                pas/=2;
            }
            r++;
        }
        o << r << "\n";
    }
}