Cod sursa(job #2559603)

Utilizator driver71528@gmail.comTerec Andrei-Sorin [email protected] Data 27 februarie 2020 14:05:43
Problema Cautare binara Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.07 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("cautbin.in");
ofstream g("cautbin.out");

int sir[100001],n,m;

int gasire(int x)
{
    int i=1,j=n,m;
    while(i<j)
    {
        m=(i+j+1)/2;
        if(sir[m]<=x)
            i=m;
        else
            j=m-1;
    }
    return sir[i]==x? i : -1;
}
int maxim(int x)
{
    int i,j,m;
    i=1;
    j=n;
    while(i<j)
    {
        m=(i+j+1)/2;
        if(sir[m]<=x)
            i=m;
        else
            j=m-1;
    }
    return i;
}
int minim(int x)
{
    int i,j,m;
    i=1;
    j=n;
    while(i<j)
    {
        m=(i+j)/2;
        if(sir[m]>=x)
            j=m;
        else
            i=m+1;
    }
    return i;
}
int main()
{
    f>>n;
    for(int i=1;i<=n;i++)
        f>>sir[i];
    f>>m;
    int cod,x;
    for(int i=1;i<=m;i++)
    {
        f>>cod>>x;
        if(cod==0)
            g<<gasire(x);
        else if(cod==1)
            g<<maxim(x);
        else
            g<<minim(x);
        g<<'\n';
    }
    f.close();
    g.close();
}