Write a function that takes as input a binary tree, and prints out each level of the tree on a newline. For example:
a
/
b c
/ /
d e f
will output:
a
b c
d e f
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Write a function that takes as input a binary tree, and prints out each level of the tree on a newline. For example: a / b c / / d e f will output: a b c d e f
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