Implement division without using multiplication or division. It should work most efficient and fast.
Operations Engineering Manager Interview Questions
11,369 operations engineering manager interview questions shared by candidates
Given a sorted array, write a program to decide if two elements sum up to a third.
Say you have a single-column table of entries of variable size. Implement this table to also contain methods to lengthen one cell, cut a cell shorter, and to return which cell we're pointing at if given a certain distance from the beginning of the table. All methods need to be fast (assume a single-column table with many many entries).
Given an array of arrays which contain characters, find all the arrays with at least one common character and return them as pairs.
Given a list of 4 billion integers, find an integer not in the list using 4MB of memory.
Given an array where all numbers except one are repeated, find the number that only occurs once.
Write a function to determine if a string is an integer.
What is a null pointer?
You're given an array of numbers, and you want to find 3 numbers that sum to 0 and output those 3 numbers. You can use each number multiple times. So if you're given the array [-1, 1, 2], you would output [-1, -1, 2] because -1 -1 +2=0
Given an array of length N containing numbers bounded between 1 and N with exactly one duplicate, determine what the duplicate number is in O(n) time without using more than constant memory (no making new arrays of N length).
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