JAVA_Happy Number_LeetCode 202

JAVA_Happy Number_LeetCode 202 풀이 class Solution { public boolean isHappy(int n) { if (n <= 0) return false; while (n >= 10) { int sum = 0; while (n != 0) { sum += (n % 10) * (n % 10); n /= 10; } n = sum; } return n == 1 || n == 7; } } * 출처 https://leetcode.com/problems/happy-number/ Level up your coding skills and quickly land a job.

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