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Cod sursa(job #927745)
#include <fstream>
#include <algorithm>
using namespace std;
ifstream f("algsort.in");
ofstream g("algsort.out");
void quickSort(long arr[], long left, long right)
{
int i = left, j = right;
int tmp;
int pivot = arr[(left + right) / 2];
while (i <= j) {
while (arr[i] < pivot)
i++;
while (arr[j] > pivot)
j--;
if (i <= j) {
tmp = arr[i];
arr[i] = arr[j];
arr[j] = tmp;
i++;
j--;
}
}
/* recursion */
if (left < j)
quickSort(arr, left, j);
if (i < right)
quickSort(arr, i, right);
}
int main()
{
long n,a[500000];
f>>n;
for (int i=1; i<=n; i++) f>>a[i];
quickSort(a,1,n);
for (int i=1; i<=n; i++) g<<a[i]<<' ';
f.close(); g.close();
return 0;
}