counting sort, binary tree preorder traversal, binary tree inorder traversal, keys and boxes (leetcode 1298)
Intern Software Engineer Interview Questions
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Write a function to remove all redundant characters in a given string.
Remove duplicates from a linked list. O(n) time.
How will you make this code readable (given a piece of code)
Not hard at all.
Technical Given an unsorted array of numbers (that may contain repeated numbers), print or produce a data structure that contains all the pairs that have a sum equal to a number k. Do not include pairs that are the same numbers in a different order. Ex. [3,2,6,2,0,5,3,8,7,10] [(0,10),(2,8),(3,7)]
Given a file system and a list of files you have access to, you can access a file if you either have direct access or you have access to its parent directory.
Write a function to swap n bits of a variable from position x and position y
given an array of strings, find all the lists of anagrams present.
Convert a binary tree into a circular doubly linked list. The order of the elements in the linked list have to be the order of elements you get when you do an in order traversal of the binary tree.
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