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How to Solve Minimum Number of Coins for Fruits Problem
Master the Minimum Number of Coins for Fruits LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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Start Free for WindowsMedium#2944
LeetCode ProblemMinimum Number of Coins for Fruits
You are given an 0-indexed integer array prices where prices[i] denotes the number of coins needed to purchase the (i + 1)th fruit. The fruit market has the following reward for each fruit: Note that even if you can take fruit j for free, you can still purchase it for prices[j - 1] coins to receive its reward. Return the minimum number of coins needed to acquire all the fruits.
ArrayDynamic ProgrammingQueueHeap (Priority Queue)Monotonic Queue
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Problem Breakdown
Understanding the Minimum Number of Coins for Fruits Problem
Let's break down this LeetCode problem and understand what makes it challenging in interview settings.
Problem Statement
You are given an 0-indexed integer array prices where prices[i] denotes the number of coins needed to purchase the (i + 1)th fruit. The fruit market has the following reward for each fruit: Note that even if you can take fruit j for free, you can still purchase it for prices[j - 1] coins to receive its reward. Return the minimum number of coins needed to acquire all the fruits.
MediumProblem #2944
LeetCodeMinimum Number of Coins for Fruits
Related Topics
ArrayDynamic ProgrammingQueueHeap (Priority Queue)Monotonic Queue
How Phantom Code Helps
Get real-time assistance for Minimum Number of Coins for Fruits problems during coding interviews. Phantom Code provides instant solutions and explanations.
Examples
# Example 1
Input
prices = [3,1,2]
Output
4
# Example 2
Input
prices = [1,10,1,1]
Output
2
# Example 3
Input
prices = [26,18,6,12,49,7,45,45]
Output
39
Constraints
1 <= prices.length <= 1000
1 <= prices[i] <= 105
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Solve Minimum Number of Coins for Fruits — You are given an 0-indexed integer array prices where prices[i] denotes the numb...
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 Minimum Number of Coins for Fruits and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Minimum Number of Coins for Fruits 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 Minimum Number of Coins for Fruits?
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 Minimum Number of Coins for Fruits?
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 Minimum Number of Coins for Fruits 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 Minimum Number of Coins for Fruits 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 Minimum Number of Coins for Fruits 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 Minimum Number of Coins for Fruits 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 Minimum Number of Coins for Fruits 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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