Paint Bucket
You are given a two dimensional array matrix, containing strings “r”, “g”, and “b”. Perform a floodfill operation at row r, column c with the color target.
Coding Exercise Posts - page 7 of 43
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Vertical Word Arrangement
You are given a string s containing lowercase alphabet characters separated by spaces " ". After splitting the string on spaces, return all the words in vert...
Fibonacci Subset Sum
Given an integer n, return the minimum number of Fibonacci numbers required to sum up to n.
Binary Search Tree Typo
You are given a binary tree root which is almost a binary search tree except two nodes’ values have been swapped. Return the original binary search tree.
Largest Binary Search Subtree in Value
Given a binary tree root, return the largest sum of a subtree that is also a binary search tree.
Equal Partitions
Given a list of positive integers nums, return whether you can partition nums into two groups where the sum of the elements in both groups is equal.
Create Palindrome After Deleting at Most K Characters
Given a string s and an integer k return whether you can delete at most k characters such that after the deletion s is a palindrome.
Eat Bananas in K Hours
You are given a list of integers piles and an integer k. piles[i] represents the number of bananas on pile i. On each hour, you can choose any pile and eat r...
Longest Tree Path
Given a binary tree root, return the longest path between any two nodes in the tree.
Distinct Islands
Given a two-dimensional integer matrix of 1s and 0s, return the number of distinct “islands” in the matrix. A 1 represents land and 0 represents water, so an...
Skip Tasks to Minimize Work
You are given a list of integers nums representing tasks that you must get through in order. Each value represents the amount of time it takes to finish that...
Enclosed Islands
You are given a two-dimensional integer matrix of 1s and 0s. A 1 represents land and 0 represents water. From any land cell you can move up, down, left or ri...