Determine Color of a Chessboard Square 给一个国际象棋的板子, 问某个个子的颜色. Date April 7, 2021 Category Leetcode Comments No Comments
Finding the Users Active Minutes 给一个log是<user, min>, 定义UAM是一个user对应唯一的min的个数, 给一个k, 求[1,k]min中独立user的个数. 这题就是读懂题…. Date April 7, 2021 Category Leetcode Comments No Comments
Truncate Sentence 给一个sentence, 里面没有前置和后置空格, 求前k个words的sentence. Date April 7, 2021 Category Leetcode Comments No Comments