
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Implement in C
![**Task: Replace Alphabetic Characters with Underscores in a 2-Character String**
**Problem Statement:**
Replace any alphabetic character with '_' in a 2-character string `passCode`. For instance, if `passCode` is '9a', the output should be '9_'.
**Hint:**
Use two `if` statements to check each of the two characters in the string, using `isalpha()`.
**Learn how our autograder works**
**Provided Code:**
```c
#include <stdio.h>
#include <string.h>
#include <ctype.h>
int main(void) {
char passCode[3];
scanf("%s", passCode);
/* Your solution goes here */
printf("%s\n", passCode);
return 0;
}
```
**Instructions for Completing the Code:**
1. Include the necessary header files for input/output operations, string manipulation, and character type checking.
2. Create an array of characters `passCode` of size 3.
3. Use `scanf` to input the 2-character string into `passCode`.
4. Insert your solution where indicated to replace any alphabetic character with '_'.
5. Use the `isalpha()` function from `ctype.h` to check if a character is alphabetic.
6. Print the modified string using `printf`.
**Run Button:**
There is a 'Run' button provided to execute the code.
**Feedback Option:**
A 'Feedback?' link is available to provide or receive feedback about the exercise.](https://content.bartleby.com/qna-images/question/3e035166-c990-4dd0-a7c5-b2c139b07c7d/1cf4189e-580a-46cf-84e4-bf25fd518759/qiw4tmt_thumbnail.png)
Transcribed Image Text:**Task: Replace Alphabetic Characters with Underscores in a 2-Character String**
**Problem Statement:**
Replace any alphabetic character with '_' in a 2-character string `passCode`. For instance, if `passCode` is '9a', the output should be '9_'.
**Hint:**
Use two `if` statements to check each of the two characters in the string, using `isalpha()`.
**Learn how our autograder works**
**Provided Code:**
```c
#include <stdio.h>
#include <string.h>
#include <ctype.h>
int main(void) {
char passCode[3];
scanf("%s", passCode);
/* Your solution goes here */
printf("%s\n", passCode);
return 0;
}
```
**Instructions for Completing the Code:**
1. Include the necessary header files for input/output operations, string manipulation, and character type checking.
2. Create an array of characters `passCode` of size 3.
3. Use `scanf` to input the 2-character string into `passCode`.
4. Insert your solution where indicated to replace any alphabetic character with '_'.
5. Use the `isalpha()` function from `ctype.h` to check if a character is alphabetic.
6. Print the modified string using `printf`.
**Run Button:**
There is a 'Run' button provided to execute the code.
**Feedback Option:**
A 'Feedback?' link is available to provide or receive feedback about the exercise.
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