C programming

#include <stdio.h>
// Function declarations
int addNumbers(int a, int b);
int subtractNumbers(int a, int b);
void greetUser(char name[]);
int main() {
// Function calls
int sum = addNumbers(5, 3);
int difference = subtractNumbers(8, 4);
// Output results
printf("Sum: %d\n", sum);
printf("Difference: %d\n", difference);
// Function call with string parameter
greetUser("John");
return 0;
}
// Function definitions
int addNumbers(int a, int b) {
return a + b;
}
int subtractNumbers(int a, int b) {
return a - b;
}
void greetUser(char name[]) {
printf("Hello, %s!\n", name);
}

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Q1.In a multi-function program, what is the purpose of a function signature?

A.It provides a name for the function

B.It contains the implementation details of the function

C.It specifies the return type of the function

D.It is optional and can be omitted

Q2.Why might you use multiple functions in a program?

A.To make the program shorter and more concise

B.To increase the complexity of the program

C.To organize code, promote reusability, and improve readability

D.To slow down the execution speed of the program

Getting Started With C

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