Cod sursa(job #1892931)

Utilizator Stefan_Bogdan123Stefan Bogdan Alexandru Stefan_Bogdan123 Data 25 februarie 2017 13:20:42
Problema Cautare binara Scor 60
Compilator cpp Status done
Runda Arhiva educationala Marime 1.76 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("cautbin.in");
ofstream fout("cautbin.out");
int v[100002],n,m,M[100002],i,j,p1,p2,q,k,x,vval[100002];
int main()
{
    fin>>n;
    for(i=1;i<=n;i++)
    {
        fin>>v[i];
    }
    fin>>m;
    for(i=1;i<=m;i++)
    {
        fin>>M[i];
        fin>>x;
        if(M[i]==0)
        {
            p1=1;
            p2=n;
            k=-1;
            while(p1 <= p2 && k==-1)
            {
                q=p1+(p2-p1)/2;
                if(x>=v[q])
                {
                    p1=q+1;
                }
                else
                {
                    p2=q-1;
                }
            }
            if(v[p2]==x)
            {
                fout<<p2<<"\n";
            }
            else
            {
                fout<<-1<<"\n";
            }
        }
        if(M[i]==1)
        {
            p1=1;
            p2=n;
            k=-1;
            while(p1 <= p2 && k==-1)
            {
                q=p1+(p2-p1)/2;
                if(x>=v[q])
                {
                    p1=q+1;
                }
                else
                {
                    p2=q-1;
                }
            }
            fout<<p2<<"\n";
        }
        if(M[i]==2)
        {
            p1=1;
            p2=n;
            k=-1;
            while(p1 <= p2 && k==-1)
            {
                q=p1+(p2-p1)/2;
                if(x>v[q])
                {
                    p1=q+1;
                }
                else
                {
                    p2=q-1;
                }
            }
            fout<<p1<<"\n";
        }

    }
    fin.close();
    fout.close();
    return 0;


}