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# Assignment-A3.IV (Job Scheduling)
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"""
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THIS CODE HAS BEEN TESTED AND IS FULLY OPERATIONAL.
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Problem Statement: Implement Greedy search algorithm for any of the following application:
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IV. Job Scheduling Problem
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Code from ArtificialIntelligence (SPPU - Third Year - Computer Engineering - Content) repository on KSKA Git: https://git.kska.io/sppu-te-comp-content/ArtificialIntelligence
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"""
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# BEGINNING OF CODE
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def job_scheduling():
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jobs = []
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total = int(input("Total jobs to add:\t"))
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# Take input for jobs
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print("\n", "-"*10, "JOBS", "-"*10, "\n")
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for i in range(total):
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print(f"JOB {i+1} ->")
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job_id = int(input(f"ID for job {i+1}:\t\t"))
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deadline = int(input(f"Deadline for job {i+1}:\t"))
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profit = int(input(f"Profit for job {i+1}:\t"))
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jobs.append((job_id, deadline, profit)) # Index 0 for job_id; Index 1 for deadline; Index 2 for profit
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print(f"\nAdded {total} jobs.")
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print("-"*27, "\n")
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# Initialize
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jobs.sort(key=lambda x: x[2], reverse=True) # Sort jobs by profit; Using index 2 to access profit
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max_deadline = max(job[1] for job in jobs) # Highest deadline; Using index 1 to access deadline
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slots = [0] * (max_deadline + 1)
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total_profit = 0
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# Scheduling jobs using greedy strategy
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for job in jobs:
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for i in range(job[1], 0, -1):
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if slots[i] == 0:
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slots[i] = job[0]
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total_profit += job[2]
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break
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# Print scheduled jobs
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print("Scheduled Jobs:", end=" ")
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for i in range(1, len(slots)):
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if slots[i] != 0:
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print(slots[i], end=" ")
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print(f"\nTotal Profit: {total_profit}\n")
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job_scheduling()
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# END OF CODE
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