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How to Solve Average Time of Process per Machine Problem
Master the Average Time of Process per Machine LeetCode problem with undetectable real-time assistance. Get instant solutions and explanations during your coding interviews.
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LeetCode ProblemAverage Time of Process per Machine
Table: Activity There is a factory website that has several machines each running the same number of processes. Write a solution to find the average time each machine takes to complete a process. The time to complete a process is the 'end' timestamp minus the 'start' timestamp. The average time is calculated by the total time to complete every process on the machine divided by the number of processes that were run. The resulting table should have the machine_id along with the average time as processing_time, which should be rounded to 3 decimal places. Return the result table in any order. The result format is in the following example.
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Problem Breakdown
Understanding the Average Time of Process per Machine Problem
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Problem Statement
Table: Activity There is a factory website that has several machines each running the same number of processes. Write a solution to find the average time each machine takes to complete a process. The time to complete a process is the 'end' timestamp minus the 'start' timestamp. The average time is calculated by the total time to complete every process on the machine divided by the number of processes that were run. The resulting table should have the machine_id along with the average time as processing_time, which should be rounded to 3 decimal places. Return the result table in any order. The result format is in the following example.
EasyProblem #1661
LeetCodeAverage Time of Process per Machine
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How Phantom Code Helps
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Examples
# Example 1
Input
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Output
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# Example 2
Input
Activity table: +------------+------------+---------------+-----------+ | machine_id | process_id | activity_type | timestamp | +------------+------------+---------------+-----------+ | 0 | 0 | start | 0.712 | | 0 | 0 | end | 1.520 | | 0 | 1 | start | 3.140 | | 0 | 1 | end | 4.120 | | 1 | 0 | start | 0.550 | | 1 | 0 | end | 1.550 | | 1 | 1 | start | 0.430 | | 1 | 1 | end | 1.420 | | 2 | 0 | start | 4.100 | | 2 | 0 | end | 4.512 | | 2 | 1 | start | 2.500 | | 2 | 1 | end | 5.000 | +------------+------------+---------------+-----------+
Output
+------------+-----------------+ | machine_id | processing_time | +------------+-----------------+ | 0 | 0.894 | | 1 | 0.995 | | 2 | 1.456 | +------------+-----------------+
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Solve Average Time of Process per Machine — Table: Activity There is a factory website that has several machines each runnin...
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Frequently Asked Questions
Common questions about solving Average Time of Process per Machine and using Phantom Code during coding interviews.
How does Phantom Code help me solve coding problems like Average Time of Process per Machine 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 Average Time of Process per Machine?
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 Average Time of Process per Machine?
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 Average Time of Process per Machine 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 Average Time of Process per Machine 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 Average Time of Process per Machine 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 Average Time of Process per Machine 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 Average Time of Process per Machine 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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