Cod sursa(job #1425010)

Utilizator Bursucelthe coppice Bursucel Data 26 aprilie 2015 11:52:32
Problema Cautare binara Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.95 kb
#include <fstream>
using namespace std;
int n,p,v[1000001];
const int l=16;
ifstream in("cautbin.in");
ofstream out("cautbin.out");
inline int cautbin0(int x)
{   int i=0,pas=p;
    while(pas)
    {   if(i+pas<=n && v[i+pas]<=x) i+=pas;
        pas>>=1;
    }
    if(v[i]==x) return i;
    return -1;
}
inline int cautbin1(int x)
{   int i=0,pas=p;
    while(pas)
    {   if(i+pas<=n && v[i+pas]<=x) i+=pas;
        pas>>=1;
    }
    return i;
}
inline int cautbin2(int x)
{   int i=0,pas=p;
    while(pas)
    {   if(i+pas<=n && v[i+pas]<x) i+=pas;
        pas>>=1;
    }
    return 1+i;
}
int main ()
{   int m,tip,val;
    in>>n;
    for(p=1;p<n;p<<=1);
    p>>=1;
    for(int j=1;j<=n;j++) in>>v[j];
    in>>m;
    while(m--)
    {   in>>tip>>val;
        if(tip==0) out<<cautbin0(val)<<'\n';
        if(tip==1) out<<cautbin1(val)<<'\n';
        if(tip==2) out<<cautbin2(val)<<'\n';
    }
    out.close();
    return 0;
}