[LeetCode] Path Sum

오늘의 문제. leaf까지의 노드값 총합이, 주어진 targetSum과 같은 경우가 있는지 구하시오. Path Sum - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com class TreeNode { int val; TreeNode left; TreeNode right; TreeNode() {} TreeNode(int val) { this.val = val; } TreeNode(int val, TreeNode left, TreeNode right) { this.v..