Cod sursa(job #2621811)

Utilizator filipasvladVlad Filipas filipasvlad Data 30 mai 2020 20:09:17
Problema Cautare binara Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.82 kb
#include <iostream>
#include <fstream>
#include <algorithm>

using namespace std;

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

int n, v[100005], m, nr;

int main()
{
    fin >> n;
    for(int i = 1; i <= n; i++)
        fin >> v[i];
    fin >> m;
    for(int i = 1; i <= m; i++)
    {
        int x, y;
        fin >> y >> x;
        if(y == 0)
        {
            nr = upper_bound(v + 1, v + n + 1, x) - v - 1;
            if(v[nr] == x)
                fout << nr << '\n';
            else
                fout << -1 << '\n';
        }
        else if(y == 1)
        {
            fout << upper_bound(v + 1, v + n + 1, x) - v - 1 << '\n';
        }
        else if(y == 2)
        {
            fout << lower_bound(v + 1, v + n + 1, x) - v << '\n';
        }
    }
}