Q. Consider the two strings “”(empty string) and “abcd”. What is the edit distance between the two strings?

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Q. Wagner–Fischer is a ____________ algorithm.

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Q. Wagner–Fischer algorithm is used to find ____________

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Q. What is the edit distance between the strings “abcd” and “acbd” when the allowed operations are insertion, deletion and substitution?

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Q. For which of the following pairs of strings is the edit distance maximum?

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Q. What is the time complexity of the Wagner–Fischer algorithm where “m” and “n” are the lengths of the two strings?

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Q. Which of the following is NOT a Catalan number?

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Q. Which of the following numbers is the 6th Catalan number?

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Q. Which of the following is/are applications of Catalan numbers?

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Q. Which of the following methods can be used to find the nth Catalan number?

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Q. Which of the following implementations of Catalan numbers has the smallest time complexity?

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Q. Which of the following implementations of Catalan numbers has the largest space complexity(Don’t consider the stack space)?

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Q. Which of the following methods can be used to solve the assembly line scheduling problem?

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Q. What is the time complexity of the brute force algorithm used to solve the assembly line scheduling problem?

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Q. In the dynamic programming implementation of the assembly line scheduling problem, how many lookup tables are required?

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Q. 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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Q. In which of the following cases will the number of insertions to form a palindrome be minimum?

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Q. In the worst case, the minimum number of insertions to be made to convert the string into a palindrome is equal to the length of the string.

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Q. Consider the string “efge”. What is the minimum number of insertions required to make the string a palindrome?

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Q. Consider the string “abbccbba”. What is the minimum number of insertions required to make the string a palindrome?

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