Problem This is my solution to LeetCode – Valid Sudoku in Swift. class Solution { func isValidSudoku(_ board: [[Character]]) -> […]

Problem All the test cases pass except one of the test case which runs > 10 seconds. What can I […]

Problem Any comments on the following Sudoku solver? Comments I’m particularly interested are (but not limited to…) Algorithm. It created […]

Problem I wrote this program in C to solve a given Sudoku puzzle (represented as 2D array) using backtracking algorithm. […]

Problem I tried to implement a naive brute-force Sudoku solver in Haskell (I know there are loads of good solutions […]