Solution: Plus One
Understand how to increment a number given as an array of digits by traversing from the least significant digit and applying carry logic. Learn to handle edge cases where all digits are nine, and implement an efficient O(N) time and space solution.
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We'll cover the following...
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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