4 ms·
OK, let's say that it is better first to learn how to make trees with conses and traverse them using maps and folds with null? as a base case, and then enjoy a
by dschiptsov 13y ago
OK, let's say that it is better first to learn how to make trees with conses and traverse them using maps and folds with null? as a base case, and then enjoy a compiler which won't allow you to "cons" improper element to it.)
- nightski 13y agoWhy is this better? I see no obvious reason. Just Cons Nothing values.