Cod sursa(job #3141198)

Utilizator bogdibogdiAndrei Bogdan bogdibogdi Data 13 iulie 2023 11:57:25
Problema Cautare binara Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.14 kb
#include <iostream>
#include <fstream>

using namespace std;

ifstream fin ("cautbin.in");
ofstream fout ("cautbin.out");

int main()
{
    int n,m,i,v[100001],cer,nr;
    fin>>n;
    for(i=1;i<=n;i++)
        fin>>v[i];
    fin>>m;
    while(m)
    {
        fin>>cer>>nr;
        if(cer==0)
        {
            int st=1,dr=n,mij;
            while(st<dr)
            {
                mij=(st+dr+1)/2;
                if(v[mij]<=nr) st=mij;
                else dr=mij-1;
            }
            if(v[st]==nr) fout<<st<<endl;
            else fout<<-1<<endl;
        }
        else if(cer==1)
        {
            int st=1,dr=n,mij;
            while(st<dr)
            {
                mij=(st+dr+1)/2;
                if(v[mij]<=nr) st=mij;
                else dr=mij-1;
            }
            fout<<st<<endl;
        }
        else
        {
            int st=1,dr=n,mij;
            while(st<dr)
            {
                mij=(st+dr)/2;
                if(v[mij]<nr) st=mij+1;
                else dr=mij;
            }
            fout<<st<<endl;
        }
        m--;
    }
    return 0;
}