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Cod sursa(job #997626)
#include <fstream>
#include <ctime>
#include <cstdlib>
#include <utility>
void quiksort(int *A, int left, int right)
{
if(left >= right) return;
int l = left, r = right, pivot = A[left + rand() % (right - left)];
while(l < r)
{
while(A[l] < pivot) l++;
while(A[r] > pivot) r--;
if(l <= r)
{
std::swap(A[l], A[r]);
l++;
r--;
}
}
quiksort(A, left, r);
quiksort(A, l, right);
}
int main(void)
{
std::ofstream out("algsort.out");
std::ifstream in("algsort.in");
int nV, *nArr;
srand(time(NULL));
in >> nV;
nArr = new int[nV];
for(int i(0); i < nV; i++)
in >> nArr[i];
quiksort(nArr, 0, nV - 1);
for(int i(0); i < nV; i++)
out << nArr[i] << ' ';
return 0;
}