defis_Happy_num(n): past = set()while n != 1: n = sum(int(i)**2for i in str(n))if n in past:returnFalse past.add(n)returnTruen = 19if is_Happy_num(n): print(n,'是一个快乐数。')else: print(n,'不是一个快乐数。')方法2：「算法：」使用递归方法检查快乐数。
以下是一个Python实现的Happy Number检测算法: 代码语言:txt 复制 def is_happy_number(n): def get_next(number): total_sum = 0 while number > 0: number, digit = divmod(number, 10) total_sum += digit ** 2 return total_sum seen = set() while n != 1 and n not in seen: seen.add...
代码(Python3) class Solution: def isHappy(self, n: int) -> bool: # used 维护已出现的数字集合 used: Set[int] = set() #当 n 未出现过时,继续计算下一个数 while n not in used: # 标记 n 已出现过 used.add(n) # 计算下一个数,即求 n 的每一位的平方和 nxt: int = 0 #当 n ...
第一篇贡献给python计算happy number~ defcal(n): s=str(n) sum=0foriinrange(len(s)): sum+=int(s[i])**2returnsum a=77#13 139 ok; 4 5 6 not#print (cal(a))defitr(a): log_set=set([a])whilea!=1: temp=cal(a)iftempinlog_set:returnFalse#False but not falseelse: log_set...
Example:19 is a happy number 12+ 92= 82 82+ 22= 68 62+ 82= 100 12+ 02+ 02= 1 python实现: class Solution(object): def sqrsum(self, n):#计算平方和 m = 0 while n: if n < 10: n1 = n else: n1 = n % 10 m += n1 ** 2 ...
A happy number is a number def...lintcode-easy-Number of Islands Given a boolean 2D matrix, find the number of islands. Given graph: return 3. ...Lintcode 517. Ugly Number (Easy) (Python) Ugly Number Description: Write a program to check whether a given number is an ugly number...
Write a Java program to find and print the first 10 happy numbers. Happy number: Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number equals 1, or it loops endlessly in a cycle which does not include 1...
I've made a couple of changes to the program in my last post, and I've updated that post. 1. I added an option to enter an iteration number of your choice. 2. After the program has run you're now given an option to run further tests, which saves having to run a new program ...
Write a Java program to check whether a given number is a happy number or unhappy number. Happy number: Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number equals 1, or it loops endlessly in a cycle whi...
Longest Happy Prefix in C++ Longest String Chain in C++ C++ program to print Happy Birthday Happy Number in Python The k-th Lexicographical String of All Happy Strings of Length n in C++ Find longest length number in a string in C++ Write a program for Happy Woman’s Day in c++ Longest ...