// Plus One — EASY

// Category: array

You are given a large integer represented as an integer array `digits`, where each `digits[i]` is the `i`th digit of the integer. The digits are ordered from most significant to least significant.

Increment the large integer by one and return the resulting array of digits.

Hint: Start from the last digit. If it's 9 set it to 0 and carry over; otherwise just increment it and return.

Example: digits = [1, 2, 3]

Output: [1, 2, 4]