Cod sursa(job #3260240)

Utilizator Floroiu_MariusFloroiu Marius Cristian Floroiu_Marius Data 1 decembrie 2024 11:31:04
Problema Cautare binara Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.23 kb
#include <bits/stdc++.h>

using namespace std;
ifstream fin("cautbin.in");
ofstream fout("cautbin.out");
int n,m;
int v[100003];
int op,x;
int main()
{
    fin>>n;
    for (int i=1;i<=n;i++)
        fin>>v[i];
    fin>>m;
    while (m--)
    {
        fin>>op>>x;
        int st=1,dr=n;
        if (op==0)
        {
            int sol=-1;
            while (st<=dr)
            {
                int mij=((st+dr)>>1);
                if (v[mij]<=x)
                    st=mij+1;
                else
                    dr=mij-1;
            }
            if (v[dr]==x) sol=dr;
            fout<<sol;
        }
        else if (op==1)
        {
            while (st<=dr)
            {
                int mij=((st+dr)>>1);
                if (v[mij]<=x)
                    st=mij+1;
                else
                    dr=mij-1;
            }
            fout<<dr;
        }
        else if (op==2)
        {
            while (st<=dr)
            {
                int mij=((st+dr)>>1);
                if (v[mij]<x)
                    st=mij+1;
                else
                    dr=mij-1;
            }
            fout<<st;
        }
        fout<<'\n';
    }
    return 0;
}