Assignment 1: Due Date: Thursday, April. 29, 2021 1 What you need to do Write a program in your preferred programming language that will ask the user to enter any plaintext. Then, it will encrypt/decrypt the string using substitution cipher and print out the results on the screen. Encryption should be based on the following conditions: • Replace the characters at the string's odd positions with the previous character located in the English alphabet. • Replace the characters at the string's even positions with the 10th letter after in the English alphabet. 2 What to Submit You should submit your code and a technical report, which explains your experience developing the program.

Assignment 1: Due Date: Thursday, April. 29, 2021 1 What you need to do Write a program in your preferred programming language that will ask the user to enter any plaintext. Then, it will encrypt/decrypt the string using substitution cipher and print out the results on the screen. Encryption should be based on the following conditions: • Replace the characters at the string's odd positions with the previous character located in the English alphabet. • Replace the characters at the string's even positions with the 10th letter after in the English alphabet. 2 What to Submit You should submit your code and a technical report, which explains your experience developing the program.

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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# NumberFun.py # using multiple functions. # copy/paste this program to run it first, you are supposed to use Google Chrome as Internet Browser for this course. # 1. calculate sum of the first n natural numbers, e.g.:1,2,3,... def sumN(n): sumN = 0 for i in range(1,n+1): sumN = sumN + i return sumN # 2. calculate sum of the square of the first m natural numbers, e.g.:1,4,9,... ### After you define/write/complete the function sumMSquare(m), remove the # sign as below to ENABLE next line of code ####def sumMSquare(m):### YOUR TURN TO DEFINE/WRITE/COMPLETE function sumMSquare(m) as below, based on sumN(n) # 3. call two functions defined previously within main() function def main(): print("This program computes the total and total of squares of the first") print("N/M natural numbers.\n") n,m = input("Please enter a value for N and M: ").split(",") print("The total of the first", n, "natural numbers is", sumN(int(n)))### After you define/write/complete the function sumMSquare(m), remove…
O Permanent Temporary 4. To encode / decode a text, use: O Array of characters O ASII String Тext
NumberFun.py # using multiple functions. # copy/paste this program to run it first, you are supposed to use Google Chrome as Internet Browser for this course. # 1. calculate sum of the first n natural odd numbers, e.g.:1,3,5,7,9... def totalN(n): totalN = 0 for i in range(1,2*n+1,2): totalN = totalN + i return totalN # 2. calculate sum of the square of the first m natural odd numbers, e.g.:1,9,25,49,81... ### After you define/write/complete the function totalMSquare(m), remove the # sign as below to ENABLE next line of code #def totalMSquare(m):### YOUR TURN TO DEFINE/WRITE/COMPLETE function totalMSquare(m) as below, based on totalN(n) Please based on the first function, add more statements for the second function. You can copy/paste the sample program to run and see how it works to make sense first. 2. Don't delete the statements/codes/comments for this program, but just add more statements for the second function. (if deleted, points will be deducted.)
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