C program for " Two numbers are input through the keyboard into two loacations C and D. Write a program to interchange the contents of C and D using third variable."

Problem: C program for " Two numbers are input through the keyboard into two locations C and D. Write a program to interchange the contents of C and D using third variable." 

Logic used : 

Store the value of C in a temporary variable

Assign the value of C in D

Then assign the value of temporary variable in D.

Demo :

temp = c;

c = d;

d = temp;

C program :

// Program by Shyam Kanth

#include<stdio.h>

int main(){

    int c,d,temp;

    printf("Enter C : ");

    scanf("%d",&c);

    printf("Enter D : ");

    scanf("%d",&d);

    printf("Before swapping : \n");

    printf("C = %d and D = %d.\n",c,d);

    temp = c;

    c = d;

    d = temp;

    printf("After swapping : \n");

    printf("C = %d and D = %d.",c,d);

    return 0;

}

Codes used : 

• #inlcude < stdio.h > : Header file for input output
• int : Integer data type
• c,d,temp : Variable used
• printf : Function for displaying messages 
• scanf : Function for taking input

Do comment, if any doubt

Know about me : Shyam Kanth