JavaScript Solution, Concise ES6 using IIFE

  • 1

    Pretty much the JS equivalent of the top java solution.

    function findTilt(root) {
        let tilt = 0;
        (function postTraversal(root) {
            if (!root) return 0;
            const left = postTraversal(root.left);
            const right = postTraversal(root.right);
            tilt += Math.abs(left - right);
            return left + right + root.val;
        return tilt;

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