Cod sursa(job #3263093)

Utilizator RaresAnghelAnghel Rares Mihai RaresAnghel Data 13 decembrie 2024 10:26:59
Problema Sortare prin comparare Scor 40
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.69 kb
#include <bits/stdc++.h>

using namespace std;
const string nume="algsort";
ifstream f(nume+".in");
ofstream g(nume+".out");
int part2(int a[], int l, int r)
{
    int p=l;
    for(int i=l;i<r;i++)
    {
        if(a[i]<=a[r])
        {
            swap(a[i],a[p]);
            p++;
        }
    }
    swap(a[p],a[r]);
    return p;
}
void quicksort(int a[], int l, int r)
{
    if(l>=r)
        return;
    int p=part2(a,l,r);
    quicksort(a,l,p-1);
    quicksort(a,p+1,r);
}
int main()
{
    int n;
    f>>n;
    int a[n];
    for (int i = 0; i < n; i++)
        f>>a[i];
    quicksort(a, 0, n - 1);
    for (int i = 0; i < n;i++)
        g<<a[i]<<' ';
    return 0;
}