摘要：Given an array of integers nums and an integer threshold, we will choose a positive integer divisor, divide all the array by it, and sum the division' 阅读全文

摘要：There are n people that are split into some unknown number of groups. Each person is labeled with a unique ID from 0 to n - 1. You are given an intege 阅读全文

摘要：Given an integer number n, return the difference between the product of its digits and the sum of its digits. Example 1: Input: n = 234 Output: 15 Exp 阅读全文

摘要：You are given a string s containing lowercase letters and an integer k. You need to : First, change some characters of s to other lowercase English le 阅读全文