
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Question
Please solve by using pointers, thank you!

Transcribed Image Text:**Decoding a Hidden Message in C++**
---
This week, we have only one task: to decode a hidden message that has been stored in a variable inside the program in Exercise 1.
There is no template for this exercise, so you need to write the code that displays the hidden message.
---
### 1. Secret Message
In this exercise, you are given a `main.cpp` file that contains a hidden message encoded as a long integer, stored in the variable `x`. Your task is to write the code that decodes that hidden message and displays it on the terminal when the program is run.
---
*Bootstrap Exercise*

Transcribed Image Text:```cpp
#include <iostream>
using namespace std;
int main() {
// There is a hidden message in the number below
// Your task is to decode it
// Hint: The message is 8 letters long
long x = 4919412188601205589;
// Write a program that displays the decoded message below.
return 0;
}
```
**Explanation:**
This is a basic C++ program template with a focus on decoding a hidden message. The task is to decipher an 8-letter message from the given numeric value assigned to the variable `x` (4919412188601205589). The comments guide the developer to create a program that reveals the hidden message. There are no graphs or diagrams included in the image.
Expert Solution

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Step 1
In this question, we have to decode the given message by writing the program using a pointer
so, here the code is in C++ language
C++:-
Programming in C++ can be done in object-oriented, procedural, or generic ways and is general-purpose, case-sensitive, and free-form.
Due to its ability to incorporate both high-level and low-level language characteristics, C++ is considered a middle-level language.
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- What is a pointer variable? Next, what? It is a dynamic array. What's the thing with pointers and dynamic arrays?arrow_forwardPlease help with the assignment! Language is C. Answer as simply as you can as it is an Intro to C class. Write two functions, total_product and total_sum. Both functions return an integer. Total_product function takes in a 2D array of integers along with an integer with the number of rows and columns. This function will return an integer with the product of the sum of the rows. See example for details. The total_sum function takes in an array of integers with the size of the array. The total_sum function will find the sum of the 1D array. You must call the total_sum function in the total_product to receive full credit. Example: row/column 0 1 2 3 total_sum(row) Result 0 1 2 3 4 10 1 5 6 7 8 26 Given this 2D array above, the answer for total_product would be 260. Because row one adds up to be 10, and row two adds up to be 26. We multiple this together to get total product.arrow_forwardHow difficult is it to duplicate a collection of shared pointers into another array while using the C++ programming language? Create a list of the several approaches you may use to tackle the issue that has been presented to you. Is it the case that copying a shared pointer also copies the objects that it controls? Explainarrow_forward
- What is a pointer? How do you dereference a pointer to get its stored value?arrow_forwardpython def factorial(n):pass # replace this line with your lines of recursive codedef sum_recursively(n):pass # replace this line with your lines of recursive codedef sumlist_recursively(l):pass # replace this line with your lines of recursive codedef reverse_recursively(l):pass # replace this line with your lines of recursive code#EXTRA CREDITdef multiply_recursively(n, m):pass # replace this line with your lines of recursive codearrow_forwardA pointer variable is O the same thing as an array subscript dereferences a pointer and allows access to the value of the variable the pointer points to an operator that returns the memory address of a variable a variable that holds an addressarrow_forward
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