13. Reverse Linked List#206
Easy🔗 Linked ListPointer Reversal
Reverse a singly linked list.
Examples
Example 1:
Input: [[1,2,3,4,5]]
Output: [5,4,3,2,1]
Example 2:
Input: [[1,2]]
Output: [2,1]
Example 3:
Input: [[]]
Output: []
Why learn this
The most fundamental linked list operation. Teaches pointer manipulation and recursion.
Linked ListsIterationRecursion
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