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2 votes
1 answer
142 views

HackerRank - Binary tree to compute the Nth power of natural numbers that sum up to X

I'm trying to solve this challenge on HackerRank. In short, given x and n, I have to determine how many ways I can pick numbers ...
Enlico's user avatar
  • 517
3 votes
1 answer
186 views

LeetCode: Most Frequent Subtree Sum

My solution to LeetCode problem Most Frequent Subtree Sum works, but I have several questions regarding the code. I am also looking for an advice on how to improve the code. Problem: Given the ...
user_185051's user avatar