Problem 44

By Supreme2023-03-15

Problem Statement :

Write a function Exchange to interchange the values of two variables, say x and y. illustrate the use of this function in a calling function.

Code:

#include <stdio.h>

void exchange(int* x, int* y);

int main() {

//44. Write a function Exchange to interchange the values of two variables, say x and y.
//illustrate the use of this function in a calling function.

printf("\tExchange");
printf("\n====================================\n\n");

int x , y;

printf("Enter X : ");
scanf("%d",&x);

printf("\nEnter Y : ");
scanf("%d",&y);

printf("\n------------------------------------\n\n");
printf("Before Exchange: x = %d, y = %d\n", x, y);
exchange(&x, &y);
printf("\nAfter Exchange: x = %d, y = %d\n", x, y);
printf("\n------------------------------------\n\n");

return 0;
}

void exchange(int* x, int* y) {
int temp = *x;
*x = *y;
*y = temp;
}

Description :

This program defines a function exchange that interchanges the values of two integer variables passed to it by reference. It also includes a main function that prompts the user to input two integer values, calls the exchange function, and outputs the new values of the two variables after the exchange.
The program includes the header file stdio.h, which provides input/output functions.
The function exchange is defined with two integer pointers x and y as parameters.
The main function is defined, which does the following: a. Prints a header message. b. Prompts the user to input two integers x and y. c. Prints the original values of x and y. d. Calls the exchange function, passing in the addresses of x and y. e. Prints the new values of x and y.
The exchange function swaps the values of x and y using a temporary variable temp.

Output Image:

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Problem 44