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Development Engineer Interview Questions

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List all anagrams in a file. Assumptions: case-insensitive, a-z characters only, one word per line. For example, if the file contains dog, cat, ddd, goo, act, god -- output dog, god, act, cat

10 Answers

Find the last element of a linked list.

7 Answers

Given a list of n numbers. All numbers except one are unique. Find the number with duplicate entry.

8 Answers

How would you find the pairs of numbers that added to some specific number in an array.

7 Answers

Given an array of integer in which all numbers occur even times except for one number occurs odd times, find it.

8 Answers

Given an integer set of numbers, print all the subsets. For some reason the interviewer asked to print the supersets, but what he means is subsets.

9 Answers

Given an array with length n-1 which contains integers of the range 1 to n. Each element is distinct and appears only once. One integer is missing. Find the missing integer in linear time using O(1) memory. Now two integers are missing, find them out in linear time using O(1) memory. How about three?

11 Answers

"Solve a maze", you have a 2D matrix with 1's as blocked and 0's as path. Find a path from one corner to another, backtracking should be allowed.

7 Answers

Pancakes, size varies, and are put in a stack with random order. You have one operation called Flip(int[] pancakes, int k) to flip all pancakes from the top one to kth pancake, write a sort(int[] pancakes]) method

6 Answers

To return the 'm' smallest numbers from a file of 'n' numbers

8 Answers
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