Solution: Add to Array-Form of Integer
Explore how to add an integer to a number represented as an array of digits. Understand the digit-by-digit addition process from right to left using a carry mechanism, enabling you to compute the sum without converting the array to a full integer. This lesson covers implementing the solution with an efficient single-pass algorithm and explains its time and space complexity.
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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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