iOS developers have a "dispatch_after(when, queue, block)" Grand Central Dispatch (GCD) function they can utilize but once it's set up, these calls can not be easily cancelled. Describe how you might implement a more convenient version of this named "cancellable_dispatch_after"
Given many points, find k points that are closest to the origin.
Coding questions of good standard !
Give an array of Integer which contain duplicate number from 1-100, how to count how many distinct number you have?
Write a code to reverse binary bit pattern for an integer without using any string or utility methods?
How would you implement a top 3 word count in a text editor application?
Find nth last number in a singly linked list.
Was given a homework question(2days): Program using a language of your choice the following assignment, given a file of sorted strings (one string per line, example file was given) sorted according to some unknown alphabet, recover the order of characters of this alphabet.
You have the file with word at a single line. #input sample file abactor abaculus abacus Abadite . . Zyrenian #Output ******************a **********b ************************c a) you have to count the character and create a histogram in alphabetical order. b) now you have to produce a histogram with max 80 character in line in reference to max count c) now same out based histrogram based on the character count
Main Technical Question: Write a function that takes as input an array of words input => ['cat', 'star', 'act', 'god', 'arts', 'dog', 'rats'] and returns a sorted array output => ['cat', 'act', 'god', 'dog', 'start', 'arts', 'rats']
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