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How to Solve Make Sum Divisible by P Problem
Master the Make Sum Divisible by P LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Start Free for WindowsMedium#1590
LeetCode ProblemMake Sum Divisible by P
Given an array of positive integers nums, remove the smallest subarray (possibly empty) such that the sum of the remaining elements is divisible by p. It is not allowed to remove the whole array. Return the length of the smallest subarray that you need to remove, or -1 if it's impossible. A subarray is defined as a contiguous block of elements in the array.
ArrayHash TablePrefix Sum
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Problem Breakdown
Understanding the Make Sum Divisible by P Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
Given an array of positive integers nums, remove the smallest subarray (possibly empty) such that the sum of the remaining elements is divisible by p. It is not allowed to remove the whole array. Return the length of the smallest subarray that you need to remove, or -1 if it's impossible. A subarray is defined as a contiguous block of elements in the array.
MediumProblem #1590
LeetCodeMake Sum Divisible by P
Related Topics
ArrayHash TablePrefix Sum
How Phantom Code Helps
Get real-time assistance for Make Sum Divisible by P problems during coding interviews. Phantom Code provides instant solutions and explanations.
Examples
# Example 1
Input
nums = [3,1,4,2], p = 6
Output
1
# Example 2
Input
nums = [6,3,5,2], p = 9
Output
2
# Example 3
Input
nums = [1,2,3], p = 3
Output
0
Constraints
1 <= nums.length <= 105
1 <= nums[i] <= 109
1 <= p <= 109
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Solve Make Sum Divisible by P — Given an array of positive integers nums, remove the smallest subarray (possibly...
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 Make Sum Divisible by P and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Make Sum Divisible by P during interviews?
Phantom Code generates complete solutions instantly with proper complexity analysis, letting you focus on explaining your approach and demonstrating problem-solving skills rather than getting stuck on implementation details during high-pressure situations.
What if the interviewer asks follow-up questions or modifications to problems like Make Sum Divisible by P?
Phantom Code adapts in real-time. Screenshot the modified problem or use audio mode to capture the interviewer's follow-up, and get an updated solution within seconds — including edge cases and optimizations.
Can Phantom Code help me communicate my solution for problems like Make Sum Divisible by P?
Yes. Phantom Code provides step-by-step approach explanations with 3 progressive thoughts, so you can walk through your solution naturally. It also provides time and space complexity analysis to discuss trade-offs.
How does Phantom Code assist with different programming languages for Make Sum Divisible by P type problems?
Phantom Code supports 11 programming languages including Python, Java, C++, JavaScript, TypeScript, Go, Rust, Ruby, Swift, Kotlin, and C#. Set your preferred language and get idiomatic solutions.
What coding mistakes does Phantom Code help me avoid during Make Sum Divisible by P interviews?
Phantom Code catches common mistakes like off-by-one errors, missing edge cases, incorrect base conditions, and suboptimal approaches. It provides clean, well-structured code that handles all edge cases.
Is Phantom Code detectable when solving problems like Make Sum Divisible by P during live interviews?
No. Phantom Code runs as an invisible desktop overlay that doesn't appear in screen shares, recordings, or proctoring software. It works with Zoom, HackerRank, CodeSignal, CoderPad, and all major platforms.
How does Phantom Code help when I'm struggling with Make Sum Divisible by P style questions under pressure?
The AI provides structured guidance: first the approach (what algorithm/data structure to use and why), then the implementation with clean code, and finally complexity analysis. This helps you think clearly even under pressure.
Does Phantom Code work for the coding platforms used in Make Sum Divisible by P interviews?
Yes. Phantom Code works with all major coding platforms including LeetCode, HackerRank, CodeSignal, CoderPad, HackerEarth, and any browser-based coding environment.
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