Interchange Values of Two numbers Without using third variable

#include<stdio.h>
#include<conio.h>
void main()
{
int a,b;
clrscr();
printf("Enter First number=");
scanf("%d",&a);
printf("Enter Second number=");
scanf("%d",&b);
a=a+b;
b=a-b;
a=a-b;
printf("a is=%d\n",a);
printf("b is=%d",b);
getch();
}

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Interchange Values of Two numbers

#include<stdio.h> #include<conio.h> void main() { int a,b,c; clrscr(); printf("Enter First number="); scanf("%d",&a); printf("Enter Second number="); scanf("%d",&b); c=a; a=b; b=c; printf("a is=%d\n",a); printf("b is=%d",b); getch(); } Earn upto Rs. 9,000 pm checking Emails. Join now!

Write a Program to calculate area of a Rectangle

#include<conio.h> #include<stdio.h> void main() { int length,breadth,area_of_rectangle; clrscr(); printf("Enter the Length="); scanf("%d",&length); printf("Enter the Breadth="); scanf("%d",&breadth); area_of_rectangle=length*breadth; printf("Area of rectnagle is=%d",area_of_rectangle); getch(); }

Write a Program to calculate area of a circle

#include<conio.h> #include<stdio.h> void main() { double radius,area_of_circle; clrscr(); printf("Enter the radius="); scanf("%lf",&radius); area_of_circle=3.14*radius*radius; printf("Area of Circle is=%lf",area_of_circle); getch(); }

If a five-digit number is input through the keyboard,write a program to reverse the number?

/*Reverse a Number*/ #include<stdio.h> #include<conio.h> void main() { int number,reverse_number; clrscr(); printf("Enter the Number you want to reverse:"); scanf("%d",&number); /*we use while loop and '%' to seprate a number*/ printf("Reverse number is:"); while(number>0) { reverse_number=number%10; number=number/10;//update number printf("%d",reverse_number); } getch(); }

If a five-digit number is input through the keyboard ,write a program to calculate the sum of its digit?

/*Sum of Digit of a Number*/ #include #include void main() { int number,sum=0; clrscr(); printf("Enter the Number you want to Sum its digit:"); scanf("%d",&number); /*we use while loop and '%' to separate a number*/ printf("Sum of its digit is:"); while(number>0) { sum=sum+(number%10); number=number/10;//update number } printf("%d",sum); getch(); }