Write a Python program that takes the value of n from the user and calculates the value of S using the following equation: S = 1! - 2! + 3! - 4! + 5! - 6! + …….. n! Here, the value of n should be a positive (n>0) integer. If the user gives a negative input or zero, then print “Invalid Input!”. Also, print the sentence “End of program.” in the last line no matter what the input is. --------------------------------------------------------------------- Sample Input 1: 4 Sample Output 1: Value of S is: -19 End of program. --------------------------------------------------------------------- Sample Input 2: 11 Sample Output 2: The value of S is: 36614981 End of program. --------------------------------------------------------------------- Sample Input 3: -4 Sample Output 3: Invalid Input! End of program. --------------------------------------------------------------------- Explanation/Hints: You may import the ‘math’ module and use the built-in math.factorial() function in this problem. Alternatively, if you use a nested loop, the equation of S can be rewritten as follows: S = 1 - (12) + (123) - (1234) + …….. (123….*n) For Sample Input 1 & 2, if you simply implement the given equation in your code, you will get the desired values. For Sample Input 3, as the input is negative, the corresponding output is displayed. The sentence “End of program.” is displayed every time. need the solve asap plz

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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Write a Python program that takes the value of n from the user and calculates the value of S using the following equation: S = 1! - 2! + 3! - 4! + 5! - 6! + …….. n! Here, the value of n should be a positive (n>0) integer. If the user gives a negative input or zero, then print “Invalid Input!”. Also, print the sentence “End of program.” in the last line no matter what the input is. --------------------------------------------------------------------- Sample Input 1: 4 Sample Output 1: Value of S is: -19 End of program. --------------------------------------------------------------------- Sample Input 2: 11 Sample Output 2: The value of S is: 36614981 End of program. --------------------------------------------------------------------- Sample Input 3: -4 Sample Output 3: Invalid Input! End of program. --------------------------------------------------------------------- Explanation/Hints: You may import the ‘math’ module and use the built-in math.factorial() function in this problem. Alternatively, if you use a nested loop, the equation of S can be rewritten as follows: S = 1 - (12) + (123) - (1234) + …….. (123….*n) For Sample Input 1 & 2, if you simply implement the given equation in your code, you will get the desired values. For Sample Input 3, as the input is negative, the corresponding output is displayed. The sentence “End of program.” is displayed every time. need the solve asap plz

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