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Engineer Software Interview Questions
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Given any number, describe an algorithm that increments that number enough to turn the result into a number palindrome (i.e. reads the same left to right and right to left). That is, an input of 1000 would have a palindrome output of 1001. 9019 would have an output of 9119. If the input is already a palindrome, find the next highest palindrome.
how to make a class immutable
Write an algorithm in the language of your choice to find the subset of an array of integers with the largest sum. For example in the array [1, 5, 0, -11, 4] the subset with the largest sum is [1,5]
Given a integer list and a range (min and max), find out if there is a combination of integers that add up to a number within the given range. You can use any integer as many times as you like. You don't have to find out how many such combinations are possible / enumerate all of them. Just return true or false.
Select a random element from a stream with uniform probability (we only have access to the current element, and a function to get the next element which returns EOF when at the end of the stream).
Make it tail recursive
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Algorithm question
Given a string like "123" output "111213". Do this k times where k is a given. Another example: "122333" outputs "112233" run 1 time and outputs "212223" run twice. Basically count the occurrences of digits and append the count + digit and continue.
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