For Loop,While Loop,do while loop C Pro

Using For Loop

#include

#include 

int main()

 {

   int i = 1;

    for (i = 1; i <= 10; i++)

   {

      printf("%d", i);

   }

   return (0);

}

Using While Loop

#include

#include

int main()

{

   int i = 1;

   while (i <= 10)

   {

      printf("%d", i);

      i++;

   }

    return (0);

}

Using do while loop

#include

#include

int main()

{

   int i = 1;

   do

   {

      printf("%d", i);

      i++;

   }

   while (i <= 10);

   return (0);

}

Digits of the Number using Recursive Function in C Programming

#include

#include

int calsum(int num)

{

   int rem, sum;

   if (num != 0)

   {

      rem = num % 10;

      sum = sum + rem;

      calsum(num / 10);

   }

   return sum;

}

int main()

 {

   int num, val;

   printf("\nEnter a number: ");

   scanf("%d", &num);

   val = calsum(num);

   printf("\nSum of the digits of %d is : %d", num, val);

   return 0;

}

Output

Enter a number: 123

Sum of the digits of 123 is : 6