one less line


  • 0
    A

    Re: [Java Solution](6 lines)
    public class Solution {
    public TreeNode mergeTrees(TreeNode t1, TreeNode t2) {
    if(t1 == null || t2 == null) return t1 == null ? t2 : t1;
    TreeNode t = new TreeNode(t1.val + t2.val);
    t.left = mergeTrees(t1.left,t2.left);
    t.right = mergeTrees(t1.right,t2.right);
    return t;
    }
    }


Log in to reply
 

Looks like your connection to LeetCode Discuss was lost, please wait while we try to reconnect.