Given an array of size N in which every number is between 1 and N, determine if there are any duplicates in it. You are allowed to destroy the array if you like.
21 45758Write a routine to draw a circle (x ** 2 + y ** 2 = r ** 2) without making use of any floating point computations at all.
2 21370Give a very good method to count the number of ones in a 32 bit number. (caution: looping through testing each bit is not a solution)
7 28186Write, efficient code for extracting unique elements from a sorted list of array. e.g. (1, 1, 3, 3, 3, 5, 5, 5, 9, 9, 9, 9) -> (1, 3, 5, 9).
13 35120Write out a function that prints out all the permutations of a string. For example, abc would give you abc, acb, bac, bca, cab, cba. You can assume that all the characters will be unique.
5 20987Write a prog to accept a given string in any order and flash error if any of the character is different. For example : If abc is the input then abc, bca, cba, cab bac are acceptable, but aac or bcd are unacceptable.
5 13377Given an array of characters which form a sentence of words, give an efficient algorithm to reverse the order of the words (not characters) in it.
9 19795Post New Microsoft C Code Interview Questions
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