摘要：You are given some lists of regions where the first region of each list includes all other regions in that list. Naturally, if a region X contains ano 阅读全文

摘要：How this game is playe can be found at here. Python ROWS = 6 COLS = 7 def create_board(): return [[' ' for _ in range(COLS)] for _ in range(ROWS)] def 阅读全文

摘要：Given a list of unique words. Find all pairs of distinct indices (i, j) in the given list, so that the concatenation of the two words, i.e.words[i] + 阅读全文

摘要：Given a nested list of integers, implement an iterator to flatten it. Each element is either an integer, or a list -- whose elements may also be integ 阅读全文

摘要：Given a 2D binary matrix filled with 0's and 1's, find the largest square containing all 1's and return its area. Given a 2D binary matrix filled with 阅读全文