Cod sursa(job #2868671)

Utilizator loghin_antoniaLoghin Antonia loghin_antonia Data 11 martie 2022 09:09:11
Problema Sortare prin comparare Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.56 kb
#include <bits/stdc++.h>
using namespace std;
void QS(int a[], int st, int dr)
{
    if(st>=dr) return;
    int mij=(st+dr)/2;
    swap(a[st],a[mij]);
    int i=st,j=dr;bool ok=0;
    while(i<j)
    {
        if(a[i]>a[j]) swap(a[i],a[j]);
        j-=ok;
        ok=1-ok;
        i+=ok;
    }
    QS(a,st,i-1);
    QS(a,i+1,dr);
}
ifstream fin("algsort.in");
ofstream fout("algsort.out");
int main()
{
    int n;
    int a[500005];
    fin>>n;
    for(int i=1;i<=n;i++) fin>>a[i];
    QS(a,1,n);
    for(int i=1;i<=n;i++) fout<<a[i]<<" ";

}