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Remove repeated digits in a given number
Basic Accuracy: 70.73% Submissions: 82 Points: 1

Given an integer N represented in the form of a string, remove consecutive repeated digits from it.

Example 1:

Input:
N = 1224
Output: 124
Explanation: Two consecutive occurrences of 
2 have been reduced to one.

​Example 2:

Input: 
N = 1242
Output: 1242
Explanation: No digit is repeating 
consecutively in N.


Your Task:
You don't need to read input or print anything. Your task is to complete the function modify() which takes the integer N as input and returns the modified integer by removing all the consecutive duplicate occurrences in N.


Expected Time Complexity: O(LogN).
Expected Auxiliary Space: O(1).


Constraints:
1<=N<=1018

 

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Remove repeated digits in a given number

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