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Given a string, you have to find the minimum number of characters to be inserted in the string so that the string becomes a palindrome. Which of the following methods can be used to solve the problem?

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Given a string, you have to find the minimum number of characters to be inserted in the string so that the string becomes a palindrome. Which of the following methods can be used to solve the problem?

(a) Greedy algorithm

(b) Recursion

(c) Dynamic programming

(d) Both recursion and dynamic programming

I have been asked this question during an interview.

My enquiry is from Minimum Insertions to form a Palindrome topic in section Dynamic Programming of Data Structures & Algorithms II

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The correct answer is (d) Both recursion and dynamic programming

Easy explanation - Dynamic programming and recursion can be used to solve the problem.

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