Cod sursa(job #2736921)

Utilizator AndreiD31Dragan Andrei AndreiD31 Data 4 aprilie 2021 10:41:17
Problema Cautare binara Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.1 kb
#include <bits/stdc++.h>

using namespace std;

ifstream f("cautbin.in");
ofstream g("cautbin.out");

int n,i,m,pz,u,p,mij,c,x,v[100100];

int main()
{
    f>>n;
    for(i=1;i<=n;i++)
    {
        f>>v[i];
    }
    f>>m;
    for(i=1;i<=m;i++)
    {
        f>>c>>x;
        if(c==0)
        {
            p=1;u=n;pz=-1;
            while(p<=u)
            {
                mij=(p+u)/2;
                if(v[mij]==x)pz=mij,p=mij+1;
                else if(v[mij]<x)p=mij+1;
                else u=mij-1;
            }
            g<<pz<<'\n';
        }
        else if(c==1)
        {
            p=1;u=n;pz=-1;
            while(p<=u)
            {
                mij=(p+u)/2;
                if(v[mij]<=x)pz=mij,p=mij+1;
                else u=mij-1;
            }
            g<<pz<<'\n';
        }
        else
        {
            p=1;u=n;pz=-1;
            while(p<=u)
            {
                mij=(p+u)/2;
                if(v[mij]>=x)pz=mij,u=mij-1;
                else p=mij+1;
            }
            g<<pz<<'\n';
        }
    }
    return 0;
}