Leaderboard
Showing:
Handle Score
@Ibrahim Nash 6420
@blackshadows 6376
@mb1973 5604
@Quandray 5231
@akhayrutdinov 5111
@saiujwal13083 4510
@sanjay05 3762
@kirtidee18 3673
@marius_valentin_dragoi 3522
@sushant_a 3459
@verma_ji 3413
Complete Leaderboard
Symmetric Tree
Easy Accuracy: 50.54% Submissions: 40284 Points: 2

Given a Binary Tree. Check whether it is Symmetric or not, i.e. whether the binary tree is a Mirror image of itself or not.

Example 1:

Input:
         5
       /   \
      1     1
     /       \
    2         2
Output: True
Explanation: Tree is mirror image of
itself i.e. tree is symmetric

Example 2:

Input:
         5
       /   \
      10     10
     /  \     \
    20  20     30
Output: False

Your Task:
You don't need to read input or print anything. Your task is to complete the function isMirror() which takes the root of the Binary Tree as its input and returns True if the given Binary Tree is a same as the Mirror image of itself. Else, it returns False.

Expected Time Complexity: O(N).
Expected Auxiliary Space: O(Height of the Tree).

Constraints:
1<=Number of nodes<=100

Note:The Input/Ouput format and Example given are used for system's internal purpose, and should be used by a user for Expected Output only. As it is a function problem, hence a user should not read any input from stdin/console. The task is to complete the function specified, and not to write the full code.

 

to report an issue on this page.

Editorial

We strongly recommend solving this problem on your own before viewing its editorial. Do you still want to view the editorial?

Yes

All Submissions

My Submissions:

Login to access your submissions.

Symmetric Tree

Output Window