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Cod sursa(job #668286)
#include <fstream>
using namespace std;
ifstream in ("algsort.in");
ofstream out ("algsort.out");
int v[500006],n;
void quickSort(int arr[], int left, int right) {
int i = left, j = right;
int tmp;
int pivot = arr[(left + right) / 2];
/* partition */
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);
}
void citire () {
in >> n;
for (int i = 1;i <= n; ++i) {
in >> v[i];
}
}
void afisare () {
for (int i = 1;i <= n; ++i) {
out << v[i] << " ";
}
}
int main () {
citire ();
quickSort(v,1,n);
afisare ();
return 0;
}