Cactus Communications Editor Interview Questions and Answers

Mostly logical CAT type ques. timed

Q1. Find anagrams in a sentence
Ans. 
Identify anagrams within a given sentence
• Split the sentence into individual words

• Compare each word to every other word to find anagrams

• Store anagrams in an array of strings
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Q2. Find lca of a binary tree
Ans. 
The lowest common ancestor (LCA) of a binary tree is the shared ancestor of two nodes farthest from the root.
• Start from the root and recursively search for the nodes in the left and right subtrees.

• If one node is found in the left subtree and the other in the right subtree, then the root is the LCA.

• If both nodes are found in the left subtree, then the LCA is in the left subtree. Same for the right subtree.

• Repeat the pro
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Q1. Find duplicates in a string
Ans. 
Use a hash set to find duplicates in a string efficiently.
• Create a hash set to store characters as you iterate through the string.

• If a character is already in the hash set, it is a duplicate.

• Return the duplicates as an array of strings.
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Q2. Find the sum of the digits in a reverse order
Ans. 
To find the sum of digits in reverse order, reverse the number and then add the digits together.
• Reverse the given number

• Separate each digit of the reversed number

• Add all the digits together to get the sum
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Q1. What is your experience with previous company
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Talk about social media influence impact on chilfern