Solve problems with JavaScript
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LeetCode: Add Digits
Could work with string instead of using math
CodeWars: Sudoku Solution Validator
Three checks
LeetCode: Search in Rotated Sorted Array
Time-boxing and other solutions make life easier
LeetCode: Search a 2D Matrix
Flatten into 1D array
LeetCode: Path Sum
Keep subtracting
LeetCode: Path Sum III
If timebox exceeded, read other solutions
LeetCode: Kth Smallest Element in a BST
Inorder traversal
LeetCode: Diameter of Binary Tree
Sum of max height of 2 subtrees
LeetCode: Maximum Depth of Binary Tree
Explanation is hard
LeetCode: Balanced Binary Tree
Modified version of "Maximum Depth of Binary Tree"
LeetCode: Invert Binary Tree
A Broken Interview: The Origin
LeetCode: Longest Palindrome by Concatenating Two Letter Words
Things get messy sometimes
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