# Populating Next Right Pointers in Each Node II Leetcode Solution

In this post, we are going to solve the Populating Next Right Pointers in Each Node II Leetcode SolutionÂ problem of Leetcode. This Leetcode problem is done in many programming languages like C++, Java, and Python.

## Problem

Given a binary tree

```struct Node {
int val;
Node *left;
Node *right;
Node *next;
}
```

Populate each next pointer to point to its next right node. If there is no next right node, the next pointer should be set toÂ `NULL`.

Initially, all next pointers are set toÂ `NULL`.

Example 1:

```Input: root = [1,2,3,4,5,null,7]
Output: [1,#,2,3,#,4,5,7,#]
Explanation: Given the above binary tree (Figure A), your function should populate each next pointer to point to its next right node, just like in Figure B. The serialized output is in level order as connected by the next pointers, with '#' signifying the end of each level.
```

Example 2:

```Input: root = []
Output: []
```

Constraints:

• The number of nodes in the tree is in the rangeÂ `[0, 6000]`.
• `-100 <= Node.val <= 100`

Follow-up:

• You may only use constant extra space.
• The recursive approach is fine. You may assume implicit stack space does not count as extra space for this problem.

Now, letâ€™s see the leetcode solution ofÂ Populating Next Right Pointers in Each Node II Leetcode Solution.

### Populating Next Right Pointers in Each Node II Leetcode Solution in Java

Note:Â This problem Populating Next Right Pointers in Each Node II is generated byÂ LeetcodeÂ but the solution is provided byÂ Chase2learn This tutorial is only forÂ EducationalÂ andÂ LearningÂ purpose.

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