Cod sursa(job #2036137)

Utilizator AlexandruPaulSirbu Alex AlexandruPaul Data 10 octombrie 2017 12:58:19
Problema Cautare binara Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 1.45 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("cautbin.in");
ofstream fout("cautbin.out");
unsigned int n,k,v[100005],f,p,g,x,i,j,m,c;
int main()
{
    fin>>n;
    for (i=1; i<=n; i++)
        fin>>v[i];
    fin>>k;
    for (f=1; f<=k; f++)
    {
        fin>>c>>x;
        if (c==0)
        {
            i=1;
            j=n;
            p=0;
            while (i<j)
            {
                m=(i+j)/2;
                if (v[m]<=x)
                {
                    i=m+1;
                }
                else
                {
                    j=m-1;
                }
            }
            if (v[i]!=x)
                i--;
            fout<<i<<"\n";
        }
        if (c==1)
        {
            i=1;
            j=n;
            p=0;
            while (i<=j)
            {
                m=(i+j)/2;
                if (v[m]<=x)
                    i=m+1;
                else
                    j=m-1;
            }
            if (v[i] > x || i> n)
                i--;
            fout<<i<<"\n";
        }
        if (c==2)
        {
            i=1;
            j=n;
            while (i<=j)
            {
                m=(i+j)/2;
                if (v[m]<x)
                    i=m+1;
                else
                    j=m-1;
            }
            if(v[j] <x)
                j++;
            fout<<j;
        }
    }
    return 0;
}