C program to find Factorial of a given Number.

To print a factorial of a number:

Program:

#include <stdio.h>

#include <conio.h>

void main()

{

    int c, n; //Declaring Variable.

    unsigned long int fact=1;         

    printf("Enter an integer: "); //For printing

    scanf("%d",&n); //For Input.

    if ( n< 0)

        printf("Error!!! Factorial of negative number doesn't exist."); //For printing

    else

    {

       for(c=1;c<=n;++c)    //for loop 

          fact*=count;  

    printf("Factorial = %lu",fact); //For printing

    }

   getch(); //Getting a character or waiting for key press 

}

 

Output:

                        

C Program to Print a table of given number.

To print the table of given number.

Program:

#include<stdio.h>

#include<conio.h>

 void main()
{
   int i,a,b;  //Declaring Variable.
   

   printf("Enter the Table number"); //For printing

   scanf("%d",&a); //For Input.

   
   printf("Till where you want to print the table"); //For printing

   scanf("%d",&b);  //For Input.

   
  for(i=1;i<=b;i++)  //for loop
  printf("\n %d*%d = %d",a,i,a*i); //For printing

  getch();  //Getting a character or waiting for key press

}

Output:

C Program Swapping Number.

a)  With using third variable.

Program:

#include<stdio.h>

#include<conio.h>

void main()

{

   int x, y,temp;  //Declaring Variable.

   printf("Enter the value of x and y\n");  //For printing

   scanf("%d%d",&x,&y);  //For Input.

   printf("Before Swapping\nx = %d\ny = %d\n", x, y);  //For printing

   //performing Swap 

  temp=b;

  b=a;

  a= temp;

   printf("After Swapping\nx = %d\ny = %d\n", x, y);  //For printing

getch();  //Getting a character or waiting for key press

}

Output:

b) Without using third Variable

 Program:

#include<stdio.h>

#include<conio.h>




void main()

 {

   int a, b;  //Declaring Variable.





    




   

   printf("\nEnter value for num1 & num2 : ");  //For printing

   scanf("%d %d", &a, &b); //For Input.




    //performing Swap

   a = a + b;   

   b = a - b;

   a = a - b;




   printf("\nAfter swapping value of a : %d", a);  //For printing

   printf("\nAfter swapping value of b : %d", b);  //For printing

   getch();  //Getting a character or waiting for key press




}

Output:

Simple Calculator C program

Simple Calculator

Program:

# include <stdio.h>

# include<conio.h>

void main()

{

    int a,b,c,d=0,e;  //Declaring Variable.

    while(d==0)

   { printf("Enter two Numbers");   //For printing

      scanf("%d %d",&a,&b);   //For Input.

      e=0;

    while(e==0)

     { printf("\n1- For Addition");  //For printing

        printf("\n2- For Multiplication");  //For printing

        printf("\n3- For Division");  //For printing
    printf("\n4- For Subtraction");//For printing
       printf("\n5- Reenter the Numbers"); //For printing
        printf("\n6- To exit");  //For printing
        printf("\n Enter the Choice");  //For printing
        scanf("%d",&c);   //For Input.   

        switch(c)

      {

        case 1:{

                        printf("\n Addition : %d",a+b);  //For printing

                        break;

                      }

        case 2:{

                        printf("\n Multiplication : %d", a*b);  //For printing

                        break;

                       }

        case 3:{

                      printf("\n Division : %d",a/b);  //For printing

                      break;

                     } 

        case 4:{

                      printf("\n Subtraction : %d", a-b);  //For printing

                      break;

                     }

        case 5:{e=1;

                      break;

                     }

        case 6: {e=1;

                       d=1;

                       break;

                      }

        default:{

                       printf("Error! operator is not correct");  //For printing

                       break;

                       }

      }

  }

}

    getch();  //Getting a character or waiting for key press

}

Output:

C Program to find greatest among four.

Program to find greatest among four numbers.

Program:

#include<stdio.h> 
#include<conio.h>
void main()
{
       float a,b,c,d,n; //Declaring Variable.

       

       printf("Enter the Four Numbers :");  //For printing
       scanf("%f %f %f %f",&a,&b,&c,&d);   //For Input.

         
       n=(a>b && a>c && a>d) ? a: ((b>c && b>d) ? b: ((c>d)?c:d)); 
     
       printf("Greatest Number is : %f",n);  //For printing


       getch();    //Getting a character or waiting for key press

}
Output:

C program to find greatest among 3 numbers

To find the greatest among 3 numbers 

a)using if else statements.

Program:

#include <stdio.h>

#include<conio.h>

void main()

{

      float a, b, c;  //Declaring Variable.

      printf("Enter three numbers: ");  //For printing

      scanf("%f %f %f", &a, &b, &c);  //For Input.

      if (a>=b && a>=c)

            printf("Largest number = %.2f",a);  //For printing

      else if(b>=a && b>=c)

            printf("Largest number = %.2f",b);  //For printing

      else 

            printf("Largest Number = %.2f",c);   //For printing

      getch();  //Getting a character or waiting for key press

}

Output:

b)To find greatest among three numbers using &&.




Program:




#include<stdio.h>

#include<conio.h>

void main()

{

 int a,b,c,big;  //Declaring Variable.



printf("Enter the Three Numbers"); //For printing


scanf("%d%d%d",&a,&b,&c);  //For Input.


big=(a>b && a>c ? a:b>a && b>c ? b:c );


printf("Biggest Number = %d",big); //For printing


getch();   //Getting a character or waiting for key press

}





Output:

C Program to find greatest of two numbers

WAP for greatest among two numbers.
Program:

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

int main()

{

 int a,b,c;    //Declaring Variable.

 printf("\n Enter two Numbers: ");  //For printing

 scanf("%d %d",&a,&b);    //For Input.

 c=(a>b)?a:b;

 printf("\n The Greatest number is : %d",c);  //For printing

 getch();  //Getting a character or waiting for key press.
 return 0;

}

Output:

Video Explanation

Sorry Guys Explanation of this tutorial will be posted later this month.

C program to check leap year.

WAP to check whether the year entered by the user is leap year or not.

Program:

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

int main()

{

    int year;    //Declaring Variable.

   

    printf("Enter any year: ");  //For printing

    scanf("%d",&year);  //For Input.

    if(((year%4==0)&&(year%100!=0))||(year%400==0))  //If Statement

         printf("%d is a leap year",year);  //For printing

    else

         printf("%d is not a leap year",year);  //For printing

    getch(); //Getting a character or waiting for key press
 return 0;

}

Output:

Video Explanation

Sorry Guys Explanation of this tutorial will be posted later this month.