leetcode.com/explore/learn/card/recursion-ii/503/recursion-to-iteration/2894/ Explore - LeetCode LeetCode Explore is the best place for everyone to start practicing and learning on LeetCode. No matter if you are a beginner or a master, there are always new topics waiting for you to explore. leetcode.com 첫 if문은 생각해냈고, 두번째 if문은 따로 적어줘야 하는걸 생각 못했다. 만약 첫 if 문 뒤에 else로 return false;를 하면 메서드가 끝나버리는 데 ..