Solution: Add to Array-Form of Integer
Understand how to add an integer k to an array-form integer num by treating k as a carry and performing digit-by-digit addition from right to left. This lesson teaches an efficient approach to handle addition and carry in one pass without converting the entire array to an integer, improving problem-solving skills for coding interviews.
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Statement
The array form of an integer is defined as an array of its digits ordered from left to right. For instance, the array form of [1, 3, 2, 1].
You are given num, which represents an integer in its array form, and an integer k. Compute the sum of the integer represented by num and k, then return the result as an array form representation.
Note:
numwill not contain leading zeros unless the number itself is zero.
Constraints:
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