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C Exercises: Find Harshad Number between 1 to 100

C Numbers: Exercise-18 with Solution

Write a program in C to find Harshad Number between 1 to 100.

Sample Solution:

C Code:

# include <stdio.h>
# include <stdlib.h>
# include <stdbool.h>


bool chkHarshad(int n)
{
    int s = 0;
	int tmp;
    for (tmp=n; tmp>0; tmp /= 10)
        s += tmp % 10;
    return (n%s == 0);
}
int main()
{
    int i;
	printf("\n\n Find Harshad Numbers between 1 to 100: \n");
	printf(" ---------------------------------------------------\n");
	printf(" The Harshad Numbers are: ");
for(i=1;i<=100;i++)
{
     if( chkHarshad(i))
	printf("%d ",i);
}
	printf("\n");

}

Sample Output:

 The Harshad Numbers are: 1 2 3 4 5 6 7 8 9 10 12 18 20 21 24 27 30 36 40 42 45 48 50 54 60 63 70 72 80 81 84
 90 100

Pictorial Presentation:

C programming: Find Harshad Number between 1 to 100.

Flowchart:

Flowchart: Find Harshad Number between 1 to 100

C Programming Code Editor:

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Next: Write a program in C to check whether a number is a Pronic Number or Heteromecic Number or not.

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C Programming: Tips of the Day

Why do C and C++ compilers allow array lengths in function signatures when they're never enforced?

It is a quirk of the syntax for passing arrays to functions.

Actually it is not possible to pass an array in C. If you write syntax that looks like it should pass the array, what actually happens is that a pointer to the first element of the array is passed instead.

Since the pointer does not include any length information, the contents of your [] in the function formal parameter list are actually ignored.

Ref : https://bit.ly/3fhlvdH