Return code: 0
Duration: 81.5s

=== STDOUT ===
🚀 Running coder
📦 Dynamic packages: clingo
🤖 Creating agent with model: anthropic/claude-sonnet-4.5
🤖 Using model: anthropic/claude-sonnet-4.5
  python_exec: defining function create_asp_program()
  python_exec: defining function solve_nurse_scheduling()
  python_exec: defining function format_roster()
  python_exec: defining function verify_solution()
  python_exec: defining function create_asp_program()
  save_code: {'code': 'import clingo\nimpor...
  report_issue: {'text': 'All is fine - no iss...


                                    Summary                                     

I've successfully completed the nurse scheduling task using Answer Set          
Programming (ASP) with the clingo Python API. Here's what was accomplished:     

                               Solution Approach                                

 1 ASP Model Design:                                                            
    • Defined facts for 5 nurses, 10 days, and 3 shifts                         
    • Specified coverage requirements (morning: 2, evening: 1, night: 1)        
    • Used a choice rule to generate flexible assignments                       
    • Implemented three key constraints                                         
 2 Constraints Encoded:                                                         
    • Coverage: Each shift must have exactly the required number of nurses      
    • Single Assignment: No nurse works multiple shifts on the same day         
    • Rest Period: Nurses working night shift cannot work morning shift the next
      day                                                                       
 3 Performance: The solver found a valid solution instantly (well under the     
   10-second limit)                                                             
 4 Verification: The solution was programmatically verified to satisfy all      
   constraints                                                                  
 5 Output: Properly formatted JSON with a 10-day roster, each day containing    
   arrays for morning, evening, and night shift assignments                     

The code has been saved to 016_nurse_rostering_hard_task_code.py and produces   
valid nurse schedules that meet all the problem requirements.                   

==================================================
📊 Execution Statistics
==================================================

🔧 Tool Usage:
  python_exec            5 calls
  report_issue           1 calls
  save_code              1 calls

💬 Token Consumption:
  Input tokens:        164,203
  Output tokens:       4,178
  Total tokens:        168,381

⏱️  Execution time: 1m 20.4s
==================================================


=== STDERR ===
