A number N is represented in Linked List such that each digit corresponds to a node in linked list. You need to add 1 to it.
Example 1:
Input:
LinkedList: 4->5->6
Output: 457
Example 2:
Input:
LinkedList: 1->2->3
Output: 124
Your Task:
Your task is to complete the function addOne() which takes the head of the linked list as the only argument and returns the head of the modified linked list. The driver code prints the number. Note: The head represents the left-most digit of the number.
Expected Time Complexity: O(N). Expected Auxiliary Space: O(1).
Reset the IDE using the second button on the top right corner.
Avoid using static/global variables in your code as your code is tested
against multiple test cases and these tend to retain their previous values.
Passing the Sample/Custom Test cases does not guarantee the correctness of code.
On submission, your code is tested against multiple test cases consisting of all
possible corner cases and stress constraints.
You can access the hints to get an idea about what is expected of you as well as
the final solution code.
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Avoid using static/global variables in coding problems as your code is tested
against multiple test cases and these tend to retain their previous values.
Passing the Sample/Custom Test cases in coding problems does not guarantee the
correctness of code. On submission, your code is tested against multiple test cases
consisting of all possible corner cases and stress constraints.
POTD
POTD
