A hotel manager has to process N advance bookings of rooms for the next season. His hotel has C rooms. Bookings contain an arrival date and

Implement the next permutation, which rearranges numbers into the numerically next greater permutation of numbers for a given array A

Given a list of non negative integers, arrange them such that they form the largest number.

Find the contiguous subarray within an array, A of length N which has the largest sum.

Given a non-negative number represented as an array of digits, add 1 to the number ( increment the number represented by the digits ).