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Cod sursa(job #847508)
#include<fstream>
using namespace std;
ifstream f("algsort.in");
ofstream g("algsort.out");
int n,a[500001];
void gen(int l,int r)
{
int i=l,j=r,m=a[(l+r)/2];
int aux;
while(i<j)
{
while(a[i]<m)
i++;
while(a[j]>m)
j--;
if(i<=j)
{
//swap(a[i],a[j]);
aux=a[i];
a[i]=a[j];
a[j]=aux;
i++;
j--;
}
}
if(j>l)
gen(l,j);
if(i<r)
gen(i,r);
}
int main()
{
int i;
f>>n;
for(i=1;i<=n;i++)
f>>a[i];
gen(1,n);
for(i=1;i<=n;i++)
g<<a[i]<<" ";
return 0;
}