Evaluate if a number is considered a happy number in the least amount of characters? [closed]
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5 years ago Edited 4 years ago
For more clarification, a number is happy when the sum of the square of all numbers within a given number is equal to 1. If you enter a loop when calculating the happy number, that means the number is unhappy. :(
Print statements are not part of your character count. Your code should explicitly state if the number is happy or otherwise.
Example:
19 -> (1^2 + 9 ^2) = 82 -> (8^2 + 2^2) = 68 -> (6^2 + 8^2) = 100 ->(1^2 + 0^2 + 0^2) = 1. This means that 19 is a happy number.
Shortest and most valid answer within a week gets the solution. If you've gotten an answer on the Discord, you are not a valid contester. I'll update the question with my implementation within due time.
And, before you prepare your moderation voter hammer, it's in-line with all rules and regulations. I checked thrice.
Cheers.
My answer:
1 | local t,y,b,x={},tonumber,29;function h(n)if(t[n])then;return(false)end;t[n]="";b=0;for _ in(tostring(n):gmatch('%d'))do;b=b+(y(_)or(0))^2;end;if(b<=1)then;return("")end;print(b)return(h(b))end;print(h(b)~=false) |
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