Competitive ProgrammingEasy

Job Sequencing

Detailed guide and Python implementation for the 'Job Sequencing' problem.

Problem Statement

Easy

Write a function job_scheduling(jobs) that takes a list of tuples jobs where each tuple is (job_id, deadline, profit). Each job takes 1 unit of time to complete. Find the maximum profit and the number of jobs completed, and return them as a tuple (job_count, max_profit).

Constraints
  • 1 <= len(jobs) <= 10^4
  • 1 <= deadline <= 100
  • 1 <= profit <= 1000

Examples

Example 1
Input
job_scheduling([(1, 4, 20), (2, 1, 10), (3, 1, 40), (4, 1, 30)])
Output
(2, 60)
Explanation

We can do job 3 at time 1 and job 1 at time 2. Total profit is 40 + 20 = 60.

Example 2
Input
job_scheduling([(1, 2, 100), (2, 1, 19), (3, 2, 27), (4, 1, 25), (5, 3, 15)])
Output
(3, 142)
Explanation

We can do job 1, 3, and 5 for a total profit of 100 + 27 + 15 = 142.

Need a Hint?
Consider using Greedy-specific data structures like sets or heaps.
Edge Cases to Watch
  • Empty input structures
  • Single element inputs
  • Large numerical bounds

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