Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Transcribed Image Text:### Section 3.12 - Introduction to Programming with C: Boolean Data Type
#### Challenge Activity 3.12.1: Using `bool`
**Objective:** Assign `isTeenager` with `true` if `kidAge` is between 13 and 19 inclusive. Otherwise, assign `isTeenager` with `false`.
**Instructions:**
1. Write a program in C that includes necessary header files and uses the `bool` data type.
2. Read an integer value representing a kid's age.
3. Determine if the age falls within the teenage range (13-19 years).
4. Print "Teen" if the age is within the range, otherwise print "Not teen".
**Code:**
```c
#include <stdio.h>
#include <stdbool.h>
int main(void) {
bool isTeenager;
int kidAge;
scanf("%d", &kidAge);
/* Your solution goes here */
if (isTeenager) {
printf("Teen\n");
}
else {
printf("Not teen\n");
}
return 0;
}
```
**Explanation:**
- The program starts by including the standard input-output library `<stdio.h>` and the boolean library `<stdbool.h>`.
- It declares a boolean variable `isTeenager` and an integer variable `kidAge`.
- The age (`kidAge`) is read from user input using `scanf`.
- You need to write the logic to assign `true` or `false` to `isTeenager` based on whether `kidAge` is between 13 and 19 inclusive.
- Depending on the value of `isTeenager`, the program then prints either "Teen" or "Not teen".
Click the 'Run' button to test your solution after writing the code inside the specified section.
#### Challenge Activity 3.12.2: Bool in Branching Statements
**Objective:** Write an if-else statement to describe an integer.
**Instructions:**
1. Determine if the integer is both even and positive.
2. Print "Positive even number" if both conditions are true.
3. If only one condition is true or both are false, handle accordingly:
- Print "Positive number" if only positive.
- Print "Not a positive number" otherwise.
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