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Heap Sort.C
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Heap Sort.C
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// Heap Sort //
#include<stdio.h>
int main()
{
int n, A[10000], i, pos, temp, loc, max, result[10000], k, j;
scanf("%d", &n);
for(i=0;i<n;i=i+1)
{
scanf("%d", &A[i]);
}
for(i=n/2 ;i>=0; i=i-1)
{
pos=i;
while(pos<=n-1)
{
if(2*pos+2<=n-1)
{
if(A[2*pos+1]>A[2*pos+2])
{
max=A[2*pos+1];
loc=2*pos+1;
}
else
{
max=A[2*pos+2];
loc=2*pos+2;
}
if(max>A[pos])
{
temp=A[pos];
A[pos]=A[loc];
A[loc]=temp;
pos=loc;
}
else
{
break;
}
}
else if(2*pos+1==n-1)
{
if(A[pos]<A[2*pos+1])
{
temp=A[pos];
A[pos]=A[2*pos+1];
A[2*pos+1]=temp;
pos=2*pos+1;
}
else
{
break;
}
}
else
{
break;
}
}
}
k=n-1;
while(k>=0)
{
result[k]=A[0];
A[0]=A[k];
k=k-1;
pos=0;
while(pos<=k)
{
if(2*pos+2<=k)
{
if(A[2*pos+1]>A[2*pos+2])
{
max=A[2*pos+1];
loc=2*pos+1;
}
else
{
max=A[2*pos+2];
loc=2*pos+2;
}
if(max>A[pos])
{
temp=A[pos];
A[pos]=A[loc];
A[loc]=temp;
pos=loc;
}
else
{
break;
}
}
else if(2*pos+1==k)
{
if(A[pos]<A[2*pos+1])
{
temp=A[pos];
A[pos]=A[2*pos+1];
A[2*pos+1]=temp;
pos=2*pos+1;
}
else
{
break;
}
}
else
{
break;
}
}
}
for(i=0;i<n;i=i+1)
{
printf("%d ", result[i]);
}
}