deno.land / x / masx200_leetcode_test@10.6.5 / binary-tree-inorder-traversal / TreeNode.ts
1234567891011export class TreeNode { val: number; left: TreeNode | null; right: TreeNode | null; constructor(val?: number, left?: TreeNode | null, right?: TreeNode | null) { this.val = val === undefined ? 0 : val; this.left = left === undefined ? null : left; this.right = right === undefined ? null : right; }}
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