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Niuke-top101-bm33

2022-07-21 05:47:00 【A fish that eats cats】 

import java.util.*;

/* * public class TreeNode { * int val = 0; * TreeNode left = null; * TreeNode right = null; * public TreeNode(int val) { * this.val = val; * } * } */

public class Solution {
    
    /** *  The class name in the code 、 Method name 、 The parameter name has been specified , Do not modify , Return the value specified by the method directly  * * * @param pRoot TreeNode class  * @return TreeNode class  */
    public TreeNode Mirror (TreeNode pRoot) {
    
        // write code here
        if(pRoot == null){
    
            return null;
        }
        TreeNode left = Mirror(pRoot.left);
        TreeNode right = Mirror(pRoot.right);
        
        pRoot.left = right;
        pRoot.right = left;
        return pRoot;
    }
}
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https://yzsam.com/2022/202/202207200841144357.html

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