Practice coding challenges
8 problems
Return max row sum in accounts matrix.
Return the transpose of matrix.
Reshape matrix to r x c if possible, else return original.
You are given an n x n 2D matrix representing an image, …
Given an m x n matrix, return all elements of the matrix …
Given an m x n integer matrix, if an element is 0, …
Check if a partially filled sudoku board is valid.
Move only right or down; return min path sum to bottom-right.