Cod sursa(job #2376694)

Utilizator danhHarangus Dan danh Data 8 martie 2019 17:08:07
Problema Cautare binara Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.9 kb
#include <iostream>
#include <fstream>
#include <algorithm>
using namespace std;

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

int v[100001], n;

int main()
{
    int i;
    fin>>n;
    for(i=1; i<=n; i++)
    {
        fin>>v[i];
    }

    sort(v+1, v+n+1);

    int m, x;
    short c;
    int poz;
    fin>>m;
    for(i=1; i<=m; i++)
    {
        fin>>c>>x;
        if(c == 0)
        {
            poz = upper_bound(v+1, v+n+1, x) - v - 1;
            if(poz <= n && v[poz] == x)
            {
                fout<<poz<<'\n';
            }
            else
            {
                fout<<-1<<'\n';
            }
        }
        else if(c == 1)
        {
            fout<<upper_bound(v+1, v+n+1, x) - v - 1<<'\n';
        }
        else
        {
            fout<<lower_bound(v+1, v+n+1, x) - v<<'\n';
        }

    }

    return 0;
}