Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Please code using C++ and only use the header <iostream>. The use of any additional headers will not be accepted. Thank you!
Transcribed Image Text:**Task 13: bigNumber.cpp**
**Objective:**
Write functions for performing arithmetic on 100-digit integers. These functions should handle input, output, and addition operations.
**Requirements:**
- The input function should be silent and not produce any output.
- The addition function should not involve any input or output operations.
- Functions should not assume any specifics about other functions or the main program structure.
- The number of digits should be defined as a global constant.
**Function Prototypes:**
```cpp
void readBig(int[])
void addBig(int[], int[], int[])
void printBig(int[])
```
Use the provided main program to test these functions.
Transcribed Image Text:```cpp
#include <iostream>
using namespace std;
// This program will test three functions capable of reading, adding,
// and printing 100-digit numbers.
// Do not change these function prototypes:
void readBig(int[]);
void printBig(int[]);
void addBig(int[], int[], int[]);
// This constant should be 100 when the program is finished.
const int MAX_DIGITS = 100;
// There should be no changes made to the main program when you turn it in.
int main()
{
// Declare the three numbers, the first, second and the sum:
int num1[MAX_DIGITS], num2[MAX_DIGITS], sum[MAX_DIGITS];
bool done = false;
char response;
while (not done)
{
cout << "Please enter a number up to " << MAX_DIGITS << " digits: ";
readBig(num1);
cout << "Please enter a number up to " << MAX_DIGITS << " digits: ";
readBig(num2);
addBig(num1, num2, sum);
printBig(num1);
cout << "\n+\n";
printBig(num2);
cout << "\n=\n";
printBig(sum);
cout << "\n";
cout << "test again?";
cin >> response;
cin.ignore(900, '\n');
done = toupper(response) != 'Y';
}
return 0;
}
```
**Explanation:**
This code snippet is written in C++ and is designed to handle 100-digit arithmetic operations. It includes the following main components:
1. **Function Prototypes:**
- `void readBig(int[]);` – To read a big integer.
- `void printBig(int[]);` – To print a big integer.
- `void addBig(int[], int[], int[]);` – To add two big integers.
2. **Constant Declaration:**
- `const int MAX_DIGITS = 100;` – Specifies the maximum number of digits for the big integers.
3. **Main Function:**
- Declares three arrays (`num1`, `num2`, `sum`) with a size of `MAX_DIGITS` to store two big integers and their sum.
- Uses a boolean flag `done` to control the loop.
- Inputs two numbers with at most 100 digits, adds them, and prints the result.
- Re
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