摘要：
1、原题描述 Given the following details of a matrix with n columns and 2 rows : The matrix is a binary matrix, which means each element in the matrix can b 阅读全文
摘要：
1、原题描述： Given a 2D grid consists of 0s (land) and 1s (water). An island is a maximal 4-directionally connected group of 0s and a closed island is an i 阅读全文
摘要：
1、原题目描述： Given a list of words, list of single letters (might be repeating) and score of every character. Return the maximum score of any valid set of 阅读全文