Cod sursa(job #1424790)

Utilizator CoCo1006Tudor Costin CoCo1006 Data 25 aprilie 2015 15:28:21
Problema Cautare binara Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.56 kb
#include <fstream>
#include <cmath>
using namespace std;
ifstream in("cautbin.in");
ofstream out("cautbin.out");
int v[100001];
int main()
{ int n,m,i,t,x,j,pas;
in>>n;
for(i=1;i<=n;i++) in>>v[i];
in>>m;
for(j=1;j<=m;j++)
{
  in>>t>>x;
  pas=1<<16;
  i=0;
  if(t==0 || t==1)
  {
     while(pas!=0)
     {
       if(i+pas<=n && v[i+pas]<=x) i+=pas;
       pas/=2;
     }
     if(t==0&&v[i]!=x) out<<-1<<"\n";
     else out<<i<<"\n";
  }
  else
  {
     while(pas!=0)
     {
       if(i+pas<=n && v[i+pas]<x) i+=pas;
       pas/=2;
     }
     out<<i+1;
  }

}


    return 0;
}