Junior Software Developer Interview Questions

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Write a function in the programming language of your choice to solve the following problems. Each function should be an accompanied by a unit test.   1. Given an array of integers between 1 and 1,000,000. One integer is in the array twice. Find the duplicate. 2. Find the first non-repeating character in a string:("DEFD" -> E ) 3. A standard deck of 52 cards is represented in an array. Each card is represented as an integer. Write a method to shuffle the cards.
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Junior Software Developer

Interviewed at Bluewolf

3.8
Jul 28, 2015

Write a function in the programming language of your choice to solve the following problems. Each function should be an accompanied by a unit test.   1. Given an array of integers between 1 and 1,000,000. One integer is in the array twice. Find the duplicate. 2. Find the first non-repeating character in a string:("DEFD" -> E ) 3. A standard deck of 52 cards is represented in an array. Each card is represented as an integer. Write a method to shuffle the cards.

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