Solution: Plus One
Explore how to increment a non-negative integer represented by an array of digits by one, applying the carry method common in arithmetic addition. Understand the step-by-step logic behind managing carries when digits reach 9 and learn to implement an efficient algorithm with linear time complexity. This lesson offers clear insight into solving digit increment problems in coding interviews.
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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:
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