Given a binary tree and a sum, find all root-to-leaf paths where each path’s sum equals the given sum.
Given the below binary tree and sum = 22,
5 / \ 4 8 / / \ 11 13 4 / \ / \ 7 2 5 1
[ [5,4,11,2], [5,8,4,5] ]
NOTE: You only need to implement the given function. Do not read input, instead use the arguments to the function. Do not print the output, instead return values as specified. Still have a question? Checkout Sample Codes for more details.