Cod sursa(job #2681219)

Utilizator CrisE2005Enache Cristian CrisE2005 Data 5 decembrie 2020 10:11:30
Problema Cautare binara Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.92 kb
#include <fstream>
using namespace std;
ifstream cin("cautbin.in");
ofstream cout("cautbin.out");
int main()
{
    int n,lf,rg,nr,m,med,val=0,ans=0;
    cin>>n;
    lf=0;
    rg=n-1;
    int v[n];
    for(int i=0;i<n;i++)
    {
        cin>>v[i];
    }
    cin>>m;
    while(m)
    {
        cin>>nr;
        cin>>val;
        if(nr==0 || nr==1)
        {
            while(lf<=rg)
            {
                med=(lf+rg)/2;
                if(v[med]<=val)
                {
                    ans=med;
                    lf=med+1;
                }
                else rg=med-1;
            }
        }
        else
        {
            while(lf<=rg)
            {
                med=(lf+rg)/2;
                if(v[med]>=val)
                {
                    ans=med;
                    rg=med-1;
                }
                else lf=med+1;
            }
        }
        cout<<ans<<endl;
        m--;
    }
    return 0;
}