Top "Subsequence" questions

What is the difference between String.subString() and String.subSequence()

String.subSequence() has the following javadoc: Returns a new character sequence that is a subsequence of this sequence. An invocation …

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Given a list of numbers and a number k, return whether any two numbers from the list add up to k

This question was asked in the Google programming interview. I thought of two approaches for the same: Find all the …

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Difference between subarray, subset & subsequence

I'm a bit confused between subarray, subsequence & subset if I have {1,2,3,4} then subsequence can be {1,2,4} OR {2,4} etc. So basically …

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Number of all longest increasing subsequences

I'm practicing algorithms and one of my tasks is to count the number of all longest increasing sub-sequences for given 0 &…

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Check if string is substring in Prolog

Is there a way to check if a string is a substring of another string in Prolog? I tried converting …

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Understanding the time complexity of the Longest Common Subsequence Algorithm

I do not understand the O(2^n) complexity that the recursive function for the Longest Common Subsequence algorithm has. Usually, …

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