SDE - Intern

Write a program to do basic string compression. For a character which is consecutively repeated more than once, replace consecutive duplicate occurrences with the count of repetitions.

Example:

If a string has 'x' repeated 5 times, replace this "xxxxx" with "x5".
The string is compressed only when the repeated character count is more than 1.

Note:

Consecutive count of every character in the input string is less than or equal to 9. You are not required to print anything. It has already been taken care of. Just implement the given function and return the compressed string.

You have been given an array of 'N' Integers. Find the length of the longest subsequence such that each adjacent element of the subsequence has at least one digit in common.

Note :

A sequence 'A' is a subsequence of a sequence 'B' if 'A' can be obtained from 'B' by deletion of several (possibly, zero) elements. For example, [3,1] is a subsequence of [3,2,1] and [4,3,1], but not a subsequence of [1,3,3,7] and [3,10,4].

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