CHALLENGE: NIVEN NUMBER (only base 10)

Question

So, what is a Niven Number?
Well, let me explain with the help of an example.
Consider a number 156.
If 156 is perfectly divisible by the sum of its digits and the quotient is a natural number, then it is a Niven Number.
i.e. 156/(1+5+6)==>156/12==>13
Since 13 is an integer, 156 is a Niven Number.
Now, coming to the challenge:
Input: An integer
Output: Niven Numbers present in the range of 0 to input number (including 0 and the input number)
All The Best!!!

Answer 1

Done
https://code.sololearn.com/c76aqFV3A0AZ/?ref=app

Answer 2

https://code.sololearn.com/WXi6hFTJctvx/?ref=app

Answer 3

@Ng, as @Zephyr said, the reason is that "a" is a string and "(a - 0)" converts "a" in an integer number, same for b, so i can make the addition, this is not the only way to make the conversion.

Answer 4

Here's my C# implementation! ✌

LINQ One-Liner〰
Enumerable.Range(1, maximum)
.Where(n => n % n.ToString().Sum(c => (int)Char.GetNumericValue(c)) == 0)

I don't see the reason to start with 0 instead of 1 as it's invalid for integer division. Anyway happy coding! 😄

https://code.sololearn.com/c3nGgDt09JCf/?ref=app

Answer 5

https://code.sololearn.com/ckGzQuKN7Yy0/?ref=app

Answer 6

https://code.sololearn.com/crUKCv5nXK7p/#cpp

I been little confused with condition for 0 but here is :) !

Answer 7

My attempt
https://code.sololearn.com/c63sU6N6XUEz/?ref=app

Answer 8

@Vengat No, num % sum of digits
https://code.sololearn.com/c4bB9Pi2n17k/?ref=app

Answer 9

So
num/sum of digits

Answer 10

n = input("Enter a positive number.\n")
nn = not int(n) % sum(int(d) for d in n)
print("{} is{} a Niven Number.".format(n, "" if nn else " not"))

https://code.sololearn.com/c6g6sRrrgRHp/?ref=app

[edit:] The second code makes a list of Niven Numbers from 1 to and including the entered number. (0 is not a Niven Number)

https://code.sololearn.com/chmEWp3UYS6I/?ref=app

Answer 11

@Ng Ju Ping That's an interesting one as it treats the character (from string) as a number. 😉

Answer 12

Java:
https://code.sololearn.com/c9ClB9v4n11O/?ref=app

Answer 13

Here my version.

Edit: Second one is printing Niven numbers from 1 to entered number.
https://code.sololearn.com/cdZJKmyQaQZd/?ref=app
https://code.sololearn.com/c4mAh1NwXOBJ/?ref=app

Answer 14

https://code.sololearn.com/cUQzTuEyiXrD/?ref=app

Answer 15

this is my one-liner code! 😄
https://code.sololearn.com/cj2pn69AaWIq/?ref=app

Answer 16

hey @Maz there can i ask why your function inside the .reduce() is
function(a,b){return (a-0) + (b-0)} instead of function(a,b){return a + b}?
When I used the second one the result is wrong...
BTW thanks for your code so that I can realize my failures :)

Answer 17

thank you!!! @zephyl and maz

Answer 18

https://code.sololearn.com/codnRdLgCISI/?ref=app

Answer 19

https://code.sololearn.com/ce2SfS7pOZTO

Answer 20

my practice on python https://code.sololearn.com/cl4m05Md88vb/#py