Cod sursa(job #2480554)

Utilizator BogdanBurescuBogdan Burescu BogdanBurescu Data 25 octombrie 2019 19:35:40
Problema Cautare binara Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.74 kb
#include <fstream>
#include <algorithm>

using namespace std;
ifstream fin ("cautbin.in");
ofstream fout ("cautbin.out");
int n,t,x,i,a,v[200005],c,j,ok2,ok1,ok=0,st,dr,mij,b=0;
int main()
{
    fin>>n;
    for(i=1; i<=n; i++)
        fin>>v[i];
    fin>>a;
    for(i=1; i<=a; i++)
        fin>>c>>x;
    for(i=1; i<=n; i++)
    {
        if(c==0)
        {
            ok=-1;
            st=1;
            dr=n;
            b=0;
            while (st<=dr && b==0)
            {
                mij=(st+dr)/2;
                if (v[mij]==x)
                    {
                        ok=mij;
                        b=1;
                    }
                if (v[mij]<=x)
                    st=mij+1;
                else
                    dr=mij-1;
            }
            fout<<ok<<endl;
        }
        if(c==1)
        {
            ok1=-1;
            st=1;
            dr=n;
            b=0;
            while (st<=dr && b==0)
            {
                mij=(st+dr)/2;
                if (v[mij]<=x)
                {
                    st=mij+1;
                    ok=mij;
                    b=1;
                }
                else
                    dr=mij-1;
            }
            fout<<ok1<<endl;
        }
        if(c==2)
        {
            ok2=-1;
            st=1;
            dr=n;
            b=0;
            while (st<=dr && b==0)
            {
                mij=(st+dr)/2;
                if (v[mij]>=x)
                {
                    dr=mij-1;
                    ok=mij;
                    b=1;
                }
                else
                    st=mij+1;
            }
            fout<<ok2<<endl;
        }
    }
    return 0;
}