Data structure ( C++ ). I want to ask If my answer for this question is correct or not ?

6. Write an algorithm of Searching of Minimal and Maximal Keys in the Binary Search Tree;

MINIMUM(x)

{

While (left[x]!=nil)

x=left[x];

Return x;

}

MAXIMUM(x)

{

While (right[x]!=nil)

x=right[x];

Return x;

}