Mercury Systems interview question
Write a C++ program that finds the integer that appears once in an array where every other integer appears twice.
Interview Answer
Anonymous
17 Dec 2019
I tried utilizing a for loop, but wasn't able to figure out what logic to use to find the correct answer. Had I been thinking clearly, I would have figured out that all I needed to do was use the for loop to take the first element of the array and XOR it with every other element in the array.