C Program to interchange the value of two variables without using third variable

C Program to interchange the value of two variables without using third variable. C Programming. Interchanging Variables.

#include <stdio.h>
void main()
{
 int a,b;
 a=20, b=30;
 b=a+b;
 a=b-a;
 b=b-a;
 printf("a=%d  b=%d", a,b);
}

C Programming | C Programs | C Examples | C Program to find greatest of three numbers

C Programming | C Programs | C Examples | C Program to find greatest of three numbers

#include <stdio.h>
void main ()
{
 int a,b,c;
 printf( "Enter three numbers:");
 scanf("%d %d %d ", &a, &b,&c);
 if (a>b)
   {
     if (a>c)
       printf("%d is Big",a);
     else
       printf("%d is Big",c);
     }
 else
   {
     if (b>c)
       printf("%d is Big",b);
     else
       printf("%d is Big",c);

   }
}

C Program to Reverse a four digit number| C Programming

C Program to Reverse a four digit number| C Programming, C Programs

#include<stdio.h>
int main()
{
int N, a,b,c,d,e;
printf("Enter the  four digit number:");
scanf("%d",&N);
a=N%10;
b=((N-a)%100)/10;
c=((N-a-b*10)%1000)/100;
d=N/1000;
e=a*1000+b*100+c*10+d;
printf("\nThe reversed number is: %d",e);
return 0;
}

Output:
Enter the four digit number:1234
a=4
b=3
c=2
d=1
e=4321
The reversed number is :4321

Hello World C Program........| C Programming| Begin C Programming

Hello World C Program........| C Programming| Begin C Programming

#include <stdio.h>
int main()
{
printf("Hello World.\n");
return 0;
}

C Program for Multiplication of Two variables| C Program to multiply two numbers using scanf

C Program for Multiplication of two numbers. C program for multiplication of two integers, variables, numerals.

void main()
{
int  i, j,k;
printf("Enter the two numbers to be multiplied--");
scanf("%d%d",&i,&j);

k=i*j;
printf("\Multiplication of %d and %d is =%d",i,j,k);
}

C Program to Subtract two Numbers| C Program to Subtract two variables, numerals

 C Program for Subtraction of two numbers. C program for Subtraction of two integers, variables, numerals

void main()
{
int  i, j,k;
printf("Enter the two numbers to be Subtracted--");
scanf("%d%d",&i,&j);
if (i>j)
k=i-j;

else

k=j-i;
printf("\nSubtraction of %d and %d is =%d",i,j,k);

}