Cod sursa(job #3183664)

Utilizator Jannik_okJannik Jannik_ok Data 12 decembrie 2023 17:46:27
Problema Cautare binara Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.77 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin ("cautbin.in");
ofstream fout ("cautbin.out");
int t[100005],q1[100005],q2[100005];
int main()
{
    int i, j, nrnr, nrintrebari, st, dr, mij, poz1, poz2, poz3;
    fin >> nrnr;
    for (i=1;i<=nrnr;i++)
        fin >> t[i];
    fin >> nrintrebari;
    for (j=1;j<=nrintrebari;j++)
        fin >> q1[j] >> q2[j] ;
    for (j=1;j<=nrintrebari;j++)
    {
        if(q1[j]==0)
        {
            dr=nrnr;
            st=1;
            poz1=-1;
            while (st<=dr)
            {
                mij=(st+dr)/2;
                if (t[mij]==q2[j])
                {
                    poz1=mij;
                    st=mij+1;
                }
                else if (t[mij]>q2[j])
                    dr=mij-1;
                else
                    st=mij+1;
            }
            fout << poz1 <<'\n';
        }

        if(q1[j]==1)
        {
            dr=nrnr;
            st=1;
            poz2=0;
            while (st<=dr)
            {
                mij=(st+dr)/2;
                if (t[mij]<=q2[j])
                {
                    poz2=mij;
                    st=mij+1;
                }
                else
                    dr=mij-1;
            }
            fout << poz2 <<'\n';
        }

        if(q1[j]==2)
        {
            dr=nrnr;
            st=1;
            poz3=0;
            while (st<=dr)
            {
                mij=(st+dr)/2;
                if (t[mij]>=q2[j])
                {
                    poz3=mij;
                    dr=mij-1;
                }
                else
                    st=mij+1;
            }
            fout << poz3 <<'\n';
        }
    }
        return 0;
    }