Cod sursa(job #3253917)

Utilizator Iulya10Toader Iulia Iulya10 Data 5 noiembrie 2024 12:18:06
Problema Cautare binara Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.75 kb
#include <bits/stdc++.h>

using namespace std;
ifstream fin("cautbin.in");
ofstream fout("cautbin.out");
int n,i,m,c,x,a[100005];
int main()
{
    fin>>n;
    for(i=1;i<=n;i++)
    {
        fin>>a[i];
    }
    fin>>m;
    for(i=1;i<=m;i++)
    {
        fin>>c>>x;
        if(c==0)
        {
            int r=upper_bound(a+1,a+n+1,x)-a-1;
            if(a[r]!=x) cout<<-1<<'\n';
            else cout<<r<<'\n';
        }
        if(c==1)
        {
            int r=upper_bound(a+1,a+n+1,x)-a-1;
            while(a[r]>x) r--;
            fout<<r<<'\n';
        }
        if(c==2)
        {
            int r=lower_bound(a+1,a+n+1,x)-a-1;
            while(a[r]<x) r++;
            fout<<r;
        }
    }
    return 0;
}