Cod sursa(job #2387370)

Utilizator Simionescu_RaulSimionescu Raul Simionescu_Raul Data 24 martie 2019 15:57:27
Problema Cautare binara Scor 60
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.04 kb
#include <bits/stdc++.h>
using namespace std;
ifstream f("cautbin.in");
ofstream g("cautbin.out");
int n,m,mij,st,dr,i,pozx,intr,r,v[100001];
int main()
{ f>>n;
unsigned int x;
st=1;
dr=n;
for(i=1;i<=n;i++)
{
    f>>v[i];
}
f>>m;
for(i=1;i<=m;i++)
{
    f>>intr>>x;
    st=1;
    dr=n;
    while(st<dr)
    {
        mij=st+(dr-st+1)/2;
        if(v[mij]>x)
            dr=mij-1;
        else st=mij;
    }
    pozx=dr;
    if(intr!=2)
    {
        if(v[pozx]==x)
        {
            g<<pozx<<'\n';
        }
        else
        {
            if(intr==0)
            {
                g<<-1<<'\n';
            }
            if(intr==1)
            {
                g<<pozx<<'\n';
            }
        }
    }
    if(intr==2)
    {
        st=1;
        dr=n;
        while(st<dr)
        {
            mij=st+(dr-st+1)/2;
            if(v[mij]>=x)
                dr=mij-1;
            else
                st=mij;
        }
        pozx=dr;
        g<<pozx+1<<'\n';
    }
}
    return 0;
}