How to slove this question when using the code i give Checkpoint BFor Checkpoint B you will extend Checkpoint A to do the following:1. Prompts the user for an additional parameter: the bound on the timescale $n$ of the simulation• If a user inputs a negative timescale, the program should immediately print an error message and exit.2. The program will calculate ki, u for every time in and output these populations at each step• If the population grows negative, treat it as population that has become zero.Hint: your program will need a for-loop. Complete this checkpoint after we have introduced for-loops in class.Sample OutputSample input/output behavior for the checkpoint are provided below. Your program's spacing, spelling, capitalization, and punctuation willneed to match the sample output EXACTLY for this project.Ex 1 Sample Input/OutputGiven inputs a, 6, 7, 8, ko, ug, nas:1.5.001.052.5100210The program outputs==>Bull Kelp and Purple Urchin Population Simulator <==- Model ParametersKelp growth rate:Kelp death rate:Urchin birth rate:Urchin death rate:Initial PopulationKelp population (in thousands) at t = 0:Urchin population (in thousands) at t = 0:--- Simulation---Timescale:Time t = 0: 100.000k kelp, 2.000k urchins249.800k kelp, 7.000k urchinsTime t = 1:Time t = 2:622.751k kelp, 76.930k urchinsTime t = 3: 1508.970k kelp, 2280.018k urchinsTime t = 4: 331.946k kelp, 168603.957k urchinsTime t = 5: 0.000k kelp, 2545463.659k urchinsTime t = 6: 0.000k kelp, 0.000k urchinsTime t = 7:Time t = 8:Time t = 9: 0.000k kelp, 0.000k urchinsTime t = 10: 0.000k kelp, 0.000k urchins0.000k kelp, 0.000k urchins0.000k kelp, 0.000k urchins 1 print('==> Bull Kelp and Purple Urchin Population Simulator <==\n')2 print('- Model Parameters ---')4569print("Error:exit()b =float (input("Kelp death rate: \n"))8 if b<0:1016171819---a float (input("Kelp growth rate: \n"))if a<0:2930313211 c =float12 if c<0:1314print("Error:exit()=(input("Urchin birth rate: \n"))print("Error: cannot have a negative birth rate")exit()d =float (input("Urchin death rate: \n"))if d<0:cannot have a negative growth rate")print("Error: cannot have a negative death rate")exit()k0 max(0, float(input()))20 u0= max(0, float(input()))21 k =k022 u =u023 print('\n--- Initial Population ---')24 print (f"Kelp population (in thousands) at t = 0: ")25 print (f"Urchin population (in thousands) at t = 0: \n")26 print('- Simulation ---')2728cannot have a negative death rate")=for t in range (2): # 0, 1print (f"Time t = {t}: {k:.3f}k kelp, {u:.3f}k urchins")k_next max(0, k + a*k - b*k*u)u_next = max(0, u + c*k*u d*u)k k_nextu =u_next

Python which refers to the one it is a high-level, general-purpose programming language. Its design…

For Checkpoint B you will extend Checkpoint A to do the following: 1. Prompts the user for an additional parameter: the bound on the timescale $n$ of the simulation • If a user inputs a negative timescale, the program should immediately print an error message and exit. 2. The program will calculate , u for every time in and output these populations at each step • If the population grows negative, treat it as population that has become zero. Hint: your program will need a for-loop. Complete this checkpoint after we have introduced for-loops in class. Sample Output Sample input/output behavior for the checkpoint are provided below. Your program's spacing, spelling, capitalization, and punctuation need to match the sample output EXACTLY for this project. Ex 1 Sample Input/Output Given inputs a, B, 7, 8, ko, uo, nas: 1.5 .001 .05 2.5 100 2 10 The program outputs ==>Bull Kelp and Purple Urchin Population Simulator <== --- Model Parameters

For Checkpoint B you will extend Checkpoint A to do the following: 1. Prompts the user for an additional parameter: the bound on the timescale $n$ of the simulation • If a user inputs a negative timescale, the program should immediately print an error message and exit. 2. The program will calculate , u for every time in and output these populations at each step • If the population grows negative, treat it as population that has become zero. Hint: your program will need a for-loop. Complete this checkpoint after we have introduced for-loops in class. Sample Output Sample input/output behavior for the checkpoint are provided below. Your program's spacing, spelling, capitalization, and punctuation need to match the sample output EXACTLY for this project. Ex 1 Sample Input/Output Given inputs a, B, 7, 8, ko, uo, nas: 1.5 .001 .05 2.5 100 2 10 The program outputs ==>Bull Kelp and Purple Urchin Population Simulator <== --- Model Parameters

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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