Sum up integer array?
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write a boolean method to find out if a number is a power of 2
int getCount(int[] arr, int num)
How would you reverse the words in a string?
Recursively reverse a singly linked list.
find a loop in a list
The hardest question I was hit with was to write a function that takes an integer N and returns an NxN matrix with incrementing integers in a spiral, from outside in.
I was not able to code reversing a Query using recursion. :(
Given an array of unsorted numbers, find triplets that equal a specified sum.
“You have all of the prices for a given stock for the next year. You can buy once and sell once in that year. How do you determine when to buy and sell to maximize your profit?”
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