5 votes
5 answers
261
Does anyone know exactly when official answer key will be out?
61 votes
6 answers
262
81 votes
4 answers
263
57 votes
11 answers
267
In a binary tree, the number of internal nodes of degree $1$ is $5$, and the number of internal nodes of degree $2$ is $10$. The number of leaf nodes in the binary tree i...
57 votes
17 answers
272
31 votes
8 answers
276
26 votes
4 answers
280
The height of a binary tree is the maximum number of edges in any root to leaf path. The maximum number of nodes in a binary tree of height $h$ is:$2^h -1$$2^{h-1} -1$$2^...