Write a C Program, Input 3 Digit number and find given number is An Armstrong or Not Armstrong.

 

An Armstrong number is defined as the sum of power of each digit to a n digit number is equal to that number.

 

3-digit: 153, 370, 371, 407

4-digit: 1634, 8208, 9474

 

Example 1 (3-digit number):

Number: 153

Digits: 1,5,3

Number of digits: 3

Calculation: 1³+5³+3³

                       1+125+27 = 153

 

Example 2 (4-digit number):

1Number: 1634

Digits: 1,6,3,4

Number of digits: 4

Calculation:  1⁴+6⁴+3⁴+4⁴

                       1+1296+81+256 =1634

#include<stdio.h>

main()

{

    int n,r,x,sum=0;

    printf("\nEnter Number : ");

    scanf("%d",&n);

    x=n;

    while(n!=0)

    {

r=n%10;

sum+=r*r*r;

n/=10;

    }

    printf("\n%d Sum of Cube = %d",x,sum);

    if(x==sum)

printf("\nThe Given %d no is Armstrong Number",x);

    else

printf("\nThe Given %d no is Not Armstrong Number",x);

}

Output

Write a C Program, Input a Number, and print Reverse of the given no. And also find no is Palindrome or not Palindrome.

#include<stdio.h>

main()

{

  int n,x,r=0,s=0;

  printf("\nEnter Number : ");

  scanf("%d",&n);

  x=n;

  while(n!=0)

  {

     r=n%10;

     s=s*10+r;

     n/=10;

  }

  printf("\Given Number is %d and Reverse Number is %d",x,s);

  if(x==s)

     printf("\nThe Given Number is Palindrome ");

  else

     printf("\nThe Given Number is Not Palindrome ");

}

Output

Write a C Program. Input Number and Print of Input Number.

#include<stdio.h>
main()
{
     int n,r,sum=0;
     printf("Input Number : ");
     scanf("%d",&n);
     while(n!=0)
     {
          r=n%10;
          sum+=r;
          n/=10;
      }
      printf("Sum=%d", sum);
}

Output

  

Input numbers. Calculate Sum and Average (Mean) with using do-while loop

#include<stdio.h>
main()
{
    int i=0,n,sum=0;
    float avg=0.0; 
    do
    {
       printf("Enter Numbers. (-999 Exit) : "); 
       scanf("%d",&n);
       if(n == -999)      
            break;  
       sum+=n;
       ++i;
    }while(1);  
    avg=sum/(float)i;
    printf("Sum=%d\nAvg=%f",sum,avg);
}

Output

Input numbers. Calculate Sum and Average (Mean) with using while loop

#include<stdio.h>

main()

{

     int i=0,n,sum=0;

     float avg=0.0;

     while(1)

      {

  printf("Enter Numbers. (-999 Exit) : ");

          scanf("%d",&n);

          if(n == -999)

                break;

          sum+=n;

          ++i;

       }

       avg=sum/(float)i;

       printf("Sum=%d\nAvg=%f\n",sum,avg);

}

Output

Input 10 numbers. Calculate Sum and Average with using do-while loop

#include<stdio.h>
main()
{
    int i=1,n,sum=0;
    float avg=0.0; 
    printf("\nInput 10 Numbers : ");
    do
    {
       scanf("%d",&n)       
       sum+=i;
       ++i;
    }while(i<=10);  
    avg=sum/10.0;
    printf("Sum=%d\nAvg=%f",sum,avg);
}

Output

Input 10 numbers. Calculate Sum and Average with using while loop

#include<stdio.h>
main()
{
     int i=1,n,sum=0;
     float avg=0.0;
     printf("\nInput 10 Numbers : "); 
     while(i<=10)  
     {                
         scanf("%d",&n);
         sum+=n;                     
         ++i;  
     }                 
     avg=sum/10.0;
     printf("Sum=%d\nAvg=%f",sum,avg);

}

Output