algo4: basicds: Remove all targets in linked list
algo4: comprehensive: Max points on a line
algo4: stack: Evaluate reverse polish notation
algo4: dfs: Palindrome partitioning
algo4: dp: Palindrome partitioning II
algo4: linkedlist: sort_list: Revisited merge sorting linked list
algo4: tree: Count nodes for complete binary tree
algo4: array: valid_sudoku: Implemented 1-D array version for itint5
algo4: array: next_permutation: Revisited and added hasNextPermutation()