Cod sursa(job #1611670)

Utilizator RaduMirceaAndreiRadu Mircea Andrei RaduMirceaAndrei Data 24 februarie 2016 12:35:01
Problema Cautare binara Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 1.22 kb
# include <fstream>
using namespace std;
ifstream fin("cautbin.in");
ofstream fout("cautbin.out");
int st,dr,mij,n,m,v[100010],i,val,el;
int main () {
    fin>>n;
    for(i=1;i<=n;i++)
        fin>>v[i];
    fin>>m;
    for(i=1;i<=m;i++){
        fin>>val>>el;
        if(val==0){
            st=1;
            dr=n;
            while(st<=dr){
                mij=(st+dr)/2;
                if(v[mij]>el)
                    dr=mij-1;
                else
                    st=mij+1;
            }
            if(v[dr]==el)
                fout<<dr<<"\n";
            else
                fout<<-1<<"\n";
        }
        if(val==1){
            st=1;
            dr=n;
            while(st<=dr){
                mij=(st+dr)/2;
                if(v[mij]>el)
                    dr=mij-1;
                else
                    st=mij+1;
            }
            fout<<dr<<"\n";
        }
        if(val==2){
            st=1;
            dr=n;
            while(st<=dr){
                mij=(st+dr)/2;
                if(v[mij]>=el)
                    dr=mij-1;
                else
                    st=mij+1;
            }
            fout<<st<<"\n";
        }
    }
    return 0;
}