编写程序判断给定的数是否为丑数.丑数就是只包含质因子 2, 3, 5 的正整数.例如, 6, 8 是丑数,而 14 不是,因为它包含了另外一个质因子 7.注意:    1 也可以被当做丑数.    输入不会超过32位整数的范围.详见:https://leetcode.com/problems/ugly-number/description/ Java实现: class Solution { public boolean isUgly(int num) { if(num<=0){ return f…

［抄题］: ［思维问题］: ［一句话思路］:Long.valueOf(2)转换为long型再做 ［输入量］:空: 正常情况:特大:特小:程序里处理到的特殊情况:异常情况(不合法不合理的输入): ［画图］: ［一刷］: 取出数从i = 1开始,不用从0开始.因为第一个符合条件的数是1 .先定义number 是long1,之后再换. ［二刷］: primes[0] = Long.valueOf(2);这样大写 Long[]表示长数组的类型 queue用poll 最后返回intValue ［三刷］:…

Write a program to check whether a given number is an ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. Example 1: Input: 6 Output: true Explanation: 6 = 2 × 3 Example 2: Input: 8 Output: true Explanation: 8 = 2…

263. Ugly Number Write a program to check whether a given number is an ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 6, 8 are ugly while 14 is not ugly since it includes another prime factor 7.…

263. Ugly Number 注意:1.小于等于0都不属于丑数 2.while循环的判断不是num >= 0, 而是能被2 .3.5整除,即能被整除才去除这些数 class Solution { public: bool isUgly(int num) { ) return false; == ) num /= ; == ) num /= ; == ) num /= ; ? true : false; } }; 264. Ugly Number II 用一个数组去存第n个前面的所有整数,然后…

lc 263 Ugly Number lc 263 Ugly Number Write a program to check whether a given number is an ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 6, 8 are ugly while 14 is not ugly since it includes ano…

class Solution { public: bool isUgly(int num) { ) return false; ) return true; && num % == ) num /= ; && num % == ) num /= ; && num % == ) num /= ; ; } }; 所谓丑数,是指质因子只能是2,3,5中的.1认为也是丑数.…

Write a program to check whether a given number is an ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 6, 8 are ugly while 14 is not ugly since it includes another prime factor 7. Note that 1 is ty…

Write a program to check whether a given number is an ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 6, 8 are ugly while 14 is not ugly since it includes another prime factor 7. Note that 1 is ty…

题目描述: Write a program to check whether a given number is an ugly number. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. For example, 6, 8 are ugly while 14 is not ugly since it includes another prime factor 7. Note that 1…