给你两个数 hour 和 minutes 。请你返回在时钟上，由给定时间的时针和分针组成的较小角的角度（60 单位制）。   示例 1： 输入：hour = 12, minutes = 30 输出：165 示例 2： 输入：hour = 3, minutes = 30 输出；75 示例 3： 输入：hour = 3, minutes = 15 输出：7.5 示例 4： 输入：hour = 4, minutes = 50 输出：155 示例 5： 输入：hour = 12, minutes = 0 输出：0…

Given two numbers, hour and minutes, return the smaller angle (in degrees) formed between the hour and the minute hand. Answers within 10-5 of the actual value will be accepted as correct.   Example 1: Input: hour = 12, minutes = 30 Output: 165 Example 2:…

在一座城市里，你需要建 n 栋新的建筑。这些新的建筑会从 1 到 n 编号排成一列。 这座城市对这些新建筑有一些规定：

You want to build n new buildings in a city. The new buildings will be built in a line and are labeled from 1 to n. However, there are city restrictions on the heights of the new buildings:

给你一个整数 n。 将 n 中所有的 非零数字 按照它们的原始顺序连接起来，形成一个新的整数 x。如果不存在 非零数字 ，则 x = 0。 sum 为 x 中所有数字的 数字和 。 返回一个整数，表示 x * sum 的值。   示例 1： 输入： n = 10203004 输出： 12340 解释：

You are given an integer n. Form a new integer x by concatenating all the non-zero digits of n in their original order. If there are no non-zero digits, x = 0. Let sum be the sum of digits in x. Return an integer representing the value of x * sum.   Example…

给你一个长度为 m 的字符串 s，其中仅包含数字。另给你一个二维整数数组 queries，其中 queries[i] = [li, ri]。

You are given a string s of length m consisting of digits. You are also given a 2D integer array queries, where queries[i] = [li, ri]. For each queries[i], extract the substring s[li..ri]. Then, perform the following:

给你一个整数数组 nums。 请你统计所有满足以下条件的 非空 子序列 对 (seq1, seq2) 的数量：

You are given an integer array nums. Your task is to find the number of pairs of non-empty subsequences (seq1, seq2) of nums that satisfy the following conditions: