Cod sursa(job #3366177)

Utilizator eva2025Eva Vasilescu eva2025 Data 29 septembrie 2026 18:29:31
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 v[100005];
int main()
{
    int n,m;
    fin>>n;
    for(int i=1; i<=n; i++)
    {
        fin>>v[i];
    }
    fin>>m;
    for(int i=1; i<=m; i++)
    {
        int c,x;
        fin>>c>>x;
        if(c==0)
        {
            int p=upper_bound(v+1,v+n+1,x)-v-1;
            if(p>=1&&p<=n&&v[p]==x)
            {
                fout<<p;
            }
            else fout<<-1;
        }
        else if(c==1)
        {
            int p=upper_bound(v+1,v+n+1,x)-v-1;
            fout<<p;
        }
        else
        {
            int p=lower_bound(v+1,v+n+1,x)-v;
            fout<<p;
        }
         fout<<endl;
    }
       return 0;
}