given an array of strings, find all the lists of anagrams present.
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Swapping integers without using additional space
Not hard at all.
How will you make this code readable (given a piece of code)
Remove duplicates from a linked list. O(n) time.
write a function to print the frequency of characters eg. Input : aabbbc Output: a2b3c1
Write a function to remove all redundant characters in a given string.
Write an algorithm that does an in-order traversal of a tree recursively. Now, write the same algorithm iteratively.
Implement a simple compression algorithm where repeated letters in a string are represented by a count and the letter. Example: AAACBBD = 3A1C2B1D
If you were advising a grocery chain on how to find their most loyal customers what data would you want to collect in order to identify these customers?
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