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How to Solve Find Total Time Spent by Each Employee Problem

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Easy#1741
LeetCode Problem

Find Total Time Spent by Each Employee

Table: Employees Write a solution to calculate the total time in minutes spent by each employee on each day at the office. Note that within one day, an employee can enter and leave more than once. The time spent in the office for a single entry is out_time - in_time. Return the result table in any order. The result format is in the following example.

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Problem Breakdown

Understanding the Find Total Time Spent by Each Employee Problem

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Problem Statement

Table: Employees Write a solution to calculate the total time in minutes spent by each employee on each day at the office. Note that within one day, an employee can enter and leave more than once. The time spent in the office for a single entry is out_time - in_time. Return the result table in any order. The result format is in the following example.

EasyProblem #1741
LeetCode

Find Total Time Spent by Each Employee

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Examples

# Example 1

Input
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Output
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# Example 2

Input
Employees table: +--------+------------+---------+----------+ | emp_id | event_day  | in_time | out_time | +--------+------------+---------+----------+ | 1      | 2020-11-28 | 4       | 32       | | 1      | 2020-11-28 | 55      | 200      | | 1      | 2020-12-03 | 1       | 42       | | 2      | 2020-11-28 | 3       | 33       | | 2      | 2020-12-09 | 47      | 74       | +--------+------------+---------+----------+
Output
+------------+--------+------------+ | day        | emp_id | total_time | +------------+--------+------------+ | 2020-11-28 | 1      | 173        | | 2020-11-28 | 2      | 30         | | 2020-12-03 | 1      | 41         | | 2020-12-09 | 2      | 27         | +------------+--------+------------+

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Solve Find Total Time Spent by Each Employee — Table: Employees Write a solution to calculate the total time in minutes spent b...

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def solve(input):
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Undetectability Checklist

Run compatibility test before interviews
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Enable advanced screen capture options
Verify native desktop architecture
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Zoom
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Google Meet
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HackerRank
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CodeSignal
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Undetectability and technical details

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We work with Zoom, HackerRank, CodeSignal, CoderPad and other web-based platforms. Check the compatibility note and request a browser link if a specific desktop app is unsupported.

Frequently Asked Questions

Common questions about solving Find Total Time Spent by Each Employee 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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