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Cod sursa(job #794535)
#include <fstream>
using namespace std;
ifstream f("algsort.in");
ofstream g("algsort.out");
int v[500001],n,i;
void qs(int v[], int l, int r)
{
int i,j,tmp,pivot;
i=l;
j=r;
pivot=v[(l+r)/2];
while (i<=j)
{
while (v[i]<pivot)
i++;
while (v[j]>pivot);
j--;
if (i<=j)
{
tmp=v[i];
v[i]=v[j];
v[j]=tmp;
i++;
j--;
}
}
if (l<j)
qs(v, l, j);
if (i< r)
qs(v, i, r);
}
int main()
{
f>>n;
for (i=1;i<=n;i++)
f>>v[i];
qs(v, 1, n);
for (i=1;i<=n;i++)
g<<v[i]<<" ";
f.close();
g.close();
return 0;
}