Cod sursa(job #1324219)

Utilizator ciocan_catalinCiocan Catalin - Iulian ciocan_catalin Data 21 ianuarie 2015 23:03:21
Problema Cautare binara Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.89 kb
#include <fstream>
#include <algorithm>

using namespace std;
ifstream fin("cautbin.in");
ofstream fout("cautbin.out");
int a[100005];



int main()
{
    int n,m,i,j,t,r,p;
    fin>>n;
    for(i=1;i<=n;i++)
        fin>>a[i];
    sort(a+1,a+n+1);
    fin>>m;
    for(i=1;i<=m;i++)
    {
        fin>>t>>r;
        if(t==0)
        {
            p= upper_bound(a + 1, a + n + 1, r) - a - 1;
            if (p <= n && p >= 1 && a[p] == r) fout<<p<<"\n";
            else fout<<"-1\n";
        }
        else if(t==1)
        {
            if(r>=a[n]) fout<<n<<"\n";
          else
            {
            p = lower_bound(a + 1, a + n + 1, r + 1) - a - 1;
            fout<<p<<"\n";
            }
        }
        else
            {
            p = upper_bound(a+1,a+n+1,r-1)-a;
            fout<<p<<"\n";
            }
    }

    fout.close();
    return 0;
}