Find Difference of two numbers : 1000+ C Programs Code2care

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This program finds the difference of two numbers entered by user.

This is as simple as the previous program, but it would be a good practice for beginners to get familiar with C programming syntax. Variables :

integers : number1 and number2 to hold values of number A and number B. difference is used to calculate the total of A - B

Functions :

printf() : is used to display something on the console/screen. %d in printf function is used to display a int variable on screen. \n is used to subtract a newline

scanf() : is used to fetch data inputted by the user on the console/screen using keyboard. %d in scanf is indicates that inputted text is of type int. &num1 referes to the address of memory location which will hold number1

Description : Minus - is the subtraction operator used to get the difference of two numbers. difference variable holds the difference of number1 and number2.


/*
 * 1000+ C programs + tutorials
 *
 * This is a C program to Subtract two
 * numbers.
 *
 *
 *
 * difference_of_two_numbers.c
 *
 *  Created on: Oct 20, 2014
 *      Author: Code2care.org
 */

#include <stdio.h>
//#include <conio.h>

void main() {

    int number1;
	int number2;
	int difference;

	//clrscr();
	printf("Program to calculate Difference of two numbers :  \n\n");

	printf("Enter value of 1st number : ");
	scanf("%d", &number1);

	printf("\n\nEnter value of 2st number : ");
	scanf("%d", &number2);

	difference = number1 - number2;

	printf("\n\n Difference of %d - %d = %d", number1, number2, difference);

	//getch();


}

Output :

If you do not want a 3rd variable sum then we can simply output the sum as,

printf("\n\n Sum of %d + %d = %d", numberA, numberB, numberA-numberB);


/*
 *
 * 1000+ C programs + tutorials
 *
 * Difference of two numbers without using third variable
 *
 *
 *
 * 2_difference_of_two_numbers.c
 *
 *  Created on: Oct 20, 2014
 *  Author: Code2care.org
 */

#include <stdio.h>
//#include <conio.h>

void main() {

	int numberA;
	int numberB;

	//clrscr();

	printf("C Program to calculate Difference of two numbers :  \n\n");

	printf("Enter value of number A : ");
	scanf("%d", &numberA);

	printf("\n\nEnter value of number B : ");
	scanf("%d", &numberB);


	printf("\n\n Difference of %d - %d = %d", numberA, numberB, numberA - numberB);

	//getch();

}

Output :

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2 : C Program to Find Difference of two numbers