Cod sursa(job #2129514)

Utilizator CriogeniXBociat Daniel Tiberiu CriogeniX Data 12 februarie 2018 21:16:04
Problema Cautare binara Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.68 kb
#include <fstream>
#include <algorithm>
using namespace std;
ifstream f("cautbin.in");
ofstream g("cautbin.out");
int n,q,x,y,v[100100],i,r;
int main()
{
    f>>n;
    for(i=1; i<=n; i++)
        f>>v[i];
    f>>q;
    for(i=1; i<=q; i++)
    {
        f>>x>>y;
        if(x==0)
        {
            r=upper_bound(v+1,v+n+1,y)-v-1;
            if(r<=n&&r>=1&&v[r]==y)g<<r<<'\n';
            else g<<"-1"<<'\n';
        }
        if(x==1)
        {
            r=lower_bound(v+1,v+n+1,y+1)-v-1;
            g<<r<<'\n';
        }
        if(x==2)
        {
            r=upper_bound(v+1,v+n+1,y-1)-v;
            g<<r<<'\n';
        }

    }
    return 0;
}