start=0;
maxLen=0;
min=arr[0];
max=arr[0];
j=0;
for(i=1;i<n;i++)
{
if(arr[i] > max)
max=arr[i];
else if(arr[i] < min)
min=arr[i];
if( (max - min ) > k && maxLen < ( i - j ) )
{
maxLen=i - j;
start=j;
end=i-1;
}
else
{
next=i;
max=min=arr[next];
for(k=j;k<next;k++)
{
if(abs(arr[next] - arr[ j]) < k)
{
if(arr[k] > max)
max=arr[k];
else if(arr[k] < min)
min=arr[k];
if(index == -1)
{
flag=1;
index=k;
}
}
else
{
flag=0;
index=-1;
}
}
if(flag==1)
{
j=index;
i=index-1;
}
else
{
j=i;
max=arr[i];
min=arr[i]
i--;
}
}//end else
}
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