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Cod sursa(job #336645)
#include <fstream>
using namespace std;
ifstream in("algsort.in");
ofstream out("algsort.out");
int Partitie(int A[], int st, int dr)
{
int V = A[st];
while ( st < dr )
{
while ( A[dr] >= V && st < dr )
--dr;
while ( A[st] < V && st < dr )
++st;
if ( st < dr )
{
int tmp = A[st];
A[st] = A[dr];
A[dr] = tmp;
}
}
return dr;
}
void Quicksort(int A[], int st, int dr)
{
if ( st < dr )
{
int P = Partitie(A, st, dr);
Quicksort(A, st, P);
Quicksort(A, P + 1, dr);
}
}
int A[500001];
int main()
{
int n;
in >> n;
for ( int i = 1; i <= n; ++i )
in >> A[i];
Quicksort(A, 1, n);
for ( int i = 1; i <= n; ++i )
out << A[i] << " ";
return 0;
}