Cod sursa(job #1875525)

Utilizator raduzxstefanescu radu raduzx Data 11 februarie 2017 11:06:43
Problema Cautare binara Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.72 kb
#include <fstream>
#include <algorithm>
using namespace std;
ifstream f("cautbin.in");
ofstream g("cautbin.out");
int n,v[100003],i,j,a,b,ask,q,m;
int main()
{
    f>>n;
    for(i=1;i<=n;i++)
        f>>v[i];
    f>>m;
    for(q=1;q<=m;q++)
    {
        f>>a>>b;
        if(a==2)
        {
            ask=lower_bound(v+1,v+n+1,b)-v;
            g<<ask;
        }
        else
            if(a==1)
        {
            ask=lower_bound(v+1,v+n+1,b+1)-v;
            g<<ask-1;
        }
        else
        {
            ask=lower_bound(v+1,v+n+1,b+1)-v-1;
            if(v[ask]==b)
                g<<ask;
            else
                g<<"-1";
        }
        g<<'\n';
    }
    return 0;
}