摘要： 题目如下： Given an array of scores that are non-negative integers. Player 1 picks one of the numbers from either end of the array followed by the player 2 阅读全文

摘要： 题目如下： Given an integer n, count the total number of digit 1 appearing in all non-negative integers less than or equal to n. Example: 解题思路：本题是《编程之美》上的题 阅读全文