my easy three lines java solution


  • 0
    L
    public class Solution {
        public boolean isSameTree(TreeNode p, TreeNode q) {
            if (p == null && q == null) return true;
            if ((p == null && q != null) || (p != null && q == null) || p.val != q.val) return false;
            return isSameTree(p.left, q.left) && isSameTree(p.right, q.right);
        }
    }
    

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