Count total set bits in all numbers from 1 to n | Set 2.Count total set bits in all numbers from 1 to n.Count number of bits to be flipped to convert A to B.Count ‘d’ digit positive integers with 0 as a digit.Converting Decimal Number lying between 1 to 3999 to Roman Numerals.Converting Roman Numerals to Decimal lying between 1 to 3999.Check if a string can be obtained by rotating another string 2 places.Check if strings are rotations of each other or not | Set 2.A Program to check if strings are rotations of each other or not.Bitwise Hacks for Competitive Programming.Code to generate the map of India (with explanation).How to change the output of printf() in main() ?.ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.