Cod sursa(job #2568979)

Utilizator Maftei_RazvanMaftei Ravzan Maftei_Razvan Data 4 martie 2020 10:40:07
Problema Cautare binara Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.5 kb
#include <bits/stdc++.h>
using namespace std;
ifstream fin ("cautbin.in");
ofstream fout ("cautbin.out");
int n, m, i, c, x, st, dr, mij, ok;
int v[100001];
int main()
{
    fin >> n;
    for(i=1; i<=n; i++)
    {
        fin >> v[i];
    }
    fin >> m;
    for(i=1; i<=m; i++)
    {
        fin >> c >> x;
        st=1;
        dr=n;
        if(c==0)
        {
            ok=1;
            while(ok==1)
            {
                mij=(st+dr)/2;
                if(st==mij)
                    ok=0;
                if(v[mij]==x)
                    st=mij;
                else if(v[mij]<x)
                    st=mij;
                else if(v[mij]>x)
                    dr=mij;
            }
            fout << st << "\n";
        }
        else if(c==1)
        {
            ok=1;
            while(ok==1)
            {
                mij=(st+dr)/2;
                if(st==mij)
                    ok=0;
                if(v[mij]<=x)
                    st=mij;
                else if(v[mij]>x)
                    dr=mij;
            }
            fout << st << "\n";
        }
        else if(c==2)
        {
            ok=1;
            while(ok==1)
            {
                mij=(st+dr)/2;
                if(st==mij)
                    ok=0;
                if(v[mij]>=x)
                    dr=mij;
                else if(v[mij]<x)
                    st=mij;
            }
            fout << dr << "\n";
        }
    }
    return 0;
}