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How to Solve Add to Array-Form of Integer Problem
Master the Add to Array-Form of Integer LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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LeetCode ProblemAdd to Array-Form of Integer
The array-form of an integer num is an array representing its digits in left to right order. Given num, the array-form of an integer, and an integer k, return the array-form of the integer num + k.
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Problem Breakdown
Understanding the Add to Array-Form of Integer Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
The array-form of an integer num is an array representing its digits in left to right order. Given num, the array-form of an integer, and an integer k, return the array-form of the integer num + k.
Examples
# Example 1
Input
num = [1,2,0,0], k = 34
Output
[1,2,3,4]
# Example 2
Input
num = [2,7,4], k = 181
Output
[4,5,5]
# Example 3
Input
num = [2,1,5], k = 806
Output
[1,0,2,1]
Constraints
1 <= num.length <= 104
0 <= num[i] <= 9
num does not contain any leading zeros except for the zero itself.
1 <= k <= 104
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Solve Add to Array-Form of Integer — The array-form of an integer num is an array representing its digits in left to ...
Here's the optimal approach using Array:
def solve(input):
# Optimal O(n) solution
return result
Time: O(n) | Space: O(n)
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Frequently Asked Questions
Common questions about solving Add to Array-Form of Integer and using PhantomCodeAI during coding interviews.
How does PhantomCodeAI help with LeetCode problems during a coding interview?
PhantomCodeAI reads the problem from a screenshot or listens to it via audio, then generates a complete solution with a step-by-step approach and time/space complexity, so you can focus on explaining your reasoning rather than getting stuck on implementation.
Which programming languages does PhantomCodeAI support?
11 languages including Python, Java, C++, JavaScript, TypeScript, Go, Rust, Ruby, Swift, Kotlin, and C#. Set a preferred language to get idiomatic solutions.
Does PhantomCodeAI work with HackerRank, CodeSignal, and CoderPad?
Yes — it works alongside LeetCode, HackerRank, CodeSignal, CoderPad, and HackerEarth, plus any browser-based coding environment.
Can PhantomCodeAI handle follow-up questions and modifications?
Yes. Capture the modified problem by screenshot or audio and get an updated solution within seconds, including new edge cases and optimizations.
Is PhantomCodeAI detectable during live interviews?
PhantomCodeAI runs as a native desktop overlay that does not appear in screen shares, recordings, or proctoring software, and works with Zoom, Google Meet, Microsoft Teams, and major coding platforms.
Should I still practice these problems on my own first?
Yes. The most durable preparation is solving problems unaided first, then using AI afterward to review your approach, complexity, and missed edge cases — use it to debrief and learn, not to skip the reps.
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