Cod sursa(job #3253829)

Utilizator Bianca2507Negret Bianca Bianca2507 Data 4 noiembrie 2024 22:15:15
Problema Sortare prin comparare Scor 80
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.8 kb
#include <fstream>

using namespace std;
ifstream cin("algsort.in");
ofstream cout("algsort.out");

int n,v[500005],ok=1;
void sorteaza(int st,int dr)
{
    if(st<dr)
    {
        int mid=(st+dr)/2;
        swap(v[mid],v[st]);
        int i=st;
        int j=dr;
        int mod=0;
        while(i<j)
        {
            if(v[i]>v[j])
            {
                swap(v[i],v[j]);
                mod=1-mod;
            }
            i=i+mod;
            j=j-(1-mod);
        }
        sorteaza(st,i-1);
        sorteaza(i+1,dr);
    }
}
int main()
{
    cin>>n;
    for(int i=1; i<=n; i++)
    {
        cin>>v[i];
        if(v[i]<v[i-1])
            ok=0;
    }
    if(ok==0)
    sorteaza(1,n);
    for(int i=1; i<=n; i++)
        cout<<v[i]<<" ";
    return 0;
}