Cod sursa(job #1413357)

Utilizator alex_topTop Alexandru alex_top Data 1 aprilie 2015 20:30:14
Problema Cautare binara Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 1.3 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("cautbin.in");
ofstream g("cautbin.out");

int n,m,v[100001],i,a,b,vmax,vmin,vmij;
int main()
{
    f>>n;
    for(i=1;i<=n;i++)
        f>>v[i];
    f>>m;
    for(i=1;i<=m;i++)
    {
        f>>a>>b;
        vmin=1;
        vmax=n;
        while(vmax>=vmin)
        {
            vmij=vmin+(vmax-vmin)/2;
            if(v[vmij]==b)
            {
                if(a==0 || a==1)
                {
                    while(v[vmij+1]==b)
                    {
                        vmij++;
                    }
                    if(a==0) g<<vmij<<"\n";
                    if(a==1)
                    {
                        if(v[vmij]<=b) g<<vmij<<"\n";
                    }
                }
                if(a==2)
                {
                    if(v[vmij]==b)
                    {
                        while(v[vmij-1]==b)
                        {
                            vmij--;
                        }
                        g<<vmij<<"\n";
                    }
                }
                break;
            }
            else if(v[vmij]<b)
            {
                vmin=vmij+1;
            }
            else vmax=vmij-1;
        }
    }
    return 0;
}