Cod sursa(job #469177)

Utilizator S7012MYPetru Trimbitas S7012MY Data 6 iulie 2010 19:02:26
Problema Cautare binara Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.75 kb
//cb din stl
#include <fstream>
#include <algorithm>
#define DN 100100
using namespace std;

int main()
{
    int n,i,sir[DN],m,op,par,x;
    ifstream f("cautbin.in");
    ofstream g("cautbin.out");
    f>>n;
    for(i=1; i<=n; i++) f>>sir[i];
    sort(sir+1,sir+n+1);
    f>>m;
    for(i=1; i<=m; i++) {
        f>>op>>par;
        if(!op) {
            x=upper_bound(sir+ 1,sir+n+1,par)-sir-1;
            if (x<=n&&x>=1&&sir[x]==par)
                g<<x<<"\n";
            else g<<"-1\n";
        }
        else if(op==1) {
            x=lower_bound(sir+1,sir+n+1,par+1)-sir-1;
            g<<x<<"\n";
        }
        else {
            x=upper_bound(sir+1,sir+n+1,par-1)-sir;
            g<<x<<"\n";
        }
    }
    f.close();
    g.close();
    return 0;
}