write in c++ using simple programming fundamentals concepts Q4. Now write another program that will take the encrypted file in Q3 and will decrypt it todecrypted.txt.The decryption can be done by a mathematical observation given below.Lets assume n=4.The original array can be assumed as original[4] = {a,b.c.d}The encrypted array is obtained as Encrypted[4] = {b+c+d, atctd, atb+d, a+b+c}Add all the elements we will getSum = Encrypted[0] + Encrypted[1] + Encrypted[2] + Encrypted[3]= 3(atbtc)Sum of elements of Originall] = sum /n-1Thus for a given encrypted array Encrypted[] of size n, the sum of elements of the original arrayOriginall] can be calculated as sum = (Encrypted[0] + Encrypted[1] + Encrypted[2] . Encrypted[n-1])/ (n-1)Original[0] = sum - Encrypted[0]Original[1] = sum - Encrypted[1]ww m m%3D

1. Declare n, arr[n], sum 2. open file to read 3. read n 4. Loop from i = 0 to n i. read…

Answered: Now write another program that will…

Engineering

Computer Science

Now write another program that will take the encrypted file in Q3 and will decrypt it to decrypted.txt.

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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