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Solution: Plus One

Understand how to increment a non-negative integer represented as an array of digits by applying arithmetic addition and carry operations. This lesson helps you write an efficient algorithm to handle edge cases like all nines and evaluates time and space complexity for optimal solutions.

Statement

You are given a non-negative integer represented as an integer array, digits, where each element in digits[i] corresponds to a single digit of the integer. The digits are arranged from most significant (left) to least significant (right), and the number has no leading zeros.

Your task is to add one to this integer and return the updated number in the same digit-array format.

Constraints:

  • 11 \leq ...