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Cod sursa(job #701052)
#include<fstream>
using namespace std;
long a[500001];
int main()
{
ifstream f("algsort.in");
ofstream g("algsort.out");
int n,i,k,aux;
f>>n;
for(i=1; i<=n; i++)
f>>a[i];
k=n;
for(i=k/2; i>0; i--)
{
if(a[i]<a[i*2+1] && k%2==1)
{
aux=a[i];
a[i]=a[i*2+1];
a[i*2+1]=aux;
}
else
if(a[i]<a[i*2])
{
aux=a[i];
a[i]=a[i*2];
a[i*2]=aux;
}
if(i==1)
{
aux=a[i];
a[i]=a[k];
a[k]=aux;
k--;
i=k/2;
}
}
for(i=1; i<=n; i++)
g<<a[i]<<" ";
}