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Activity for Zakk‭

Type On... Excerpt Status Date
Answer A: Can you give me half?
Lua 5.4, 3 unique characters ``` lua #'#'/#'##' ``` Try it online! > [...] scoring is done in terms of number of unique characters used in the submission. 1. Hashtag # 2. Single quote ' 3. Slash /
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over 2 years ago
Edit Post #286329 Initial revision over 2 years ago
Answer A: The Pell Numbers
C (gcc), 35 bytes ``` C f(n){return n<2?n:f(n-1)2+f(n-2);} ``` Try it online!
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over 2 years ago
Edit Post #286328 Initial revision over 2 years ago
Answer A: The Pell Numbers
Lua 5.4.4, 51 bytes ``` lua function f(n)return n<2 and n or f(n-1)2+f(n-2)end ``` Try it online!
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over 2 years ago
Edit Post #286324 Initial revision over 2 years ago
Answer A: Write a Deadfish Interpreter
JavaScript (V8), 78 bytes ``` javascript f=s=>s.map(c=>(==256||<0?=0:0)||c=='i'?++:c=='d'?--:c=='s'?=:v+=+' ') ``` Try it online!
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over 2 years ago
Edit Post #286321 Initial revision over 2 years ago
Answer A: Write a Deadfish Interpreter
C (gcc), 98 bytes ``` c =0;f(chars){for(;s;++s)==256||<0?=0:1,s=='i'?++:s=='d'?--:s=='s'?=:printf("%d ",);} ``` Try it online!
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over 2 years ago
Comment Post #286311 Though both of `s:gsub` and `for..in` versions are equal in length, the former can be one byte shorter, because sticking an `s` to `0` doesn't make the Lua interpreter unhappy, contrary to sticking an `f` to `0`. ``` _=0s:gsub('.',function(c)_=({d=_-1,i=_+1;s=_*_})[c]or print(_)or _ _=({[256]=0,[...
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over 2 years ago
Edit Post #286311 Post edited:
shortened the code (thanks to orthoplex)
over 2 years ago
Comment Post #286311 > ```_=(_==256or _<0)and 0or _``` You are right. > Tables to the rescue ^^ Man! That's just brilliant! Again, thanks for pointing this out. Btw, I am really curious about how much experience you have with Lua.
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over 2 years ago
Edit Post #286301 Post edited:
shortened the code (thanks to orthoplex)
over 2 years ago
Comment Post #286301 Clever solution! Thanks!
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over 2 years ago
Edit Post #286311 Initial revision over 2 years ago
Answer A: Write a Deadfish Interpreter
Lua 5.4.4, 99 bytes ``` =0s:gsub('.',function(c)=({d=-1,i=+1;s=})[c]or print()or =({[256]=0,[-1]=0})[]or end) ``` Try it online! Thanks to @orthoplex for more shortening.
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over 2 years ago
Edit Post #286301 Post edited:
shortened the code (thanks to orthoplex)
over 2 years ago
Comment Post #286301 > If your function never runs, then clearly it won't have a runtime error :) @#53196 So calling `f()` is not necessary... If so, I will remove it.
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over 2 years ago
Comment Post #286301 @#56271 You are right! It can be shortened (and it prints `nil nil`). Strange how I missed this one out. Anyways, thanks (once more) for pointing this out!
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over 2 years ago
Edit Post #286301 Post edited:
shortened the code (thanks to orthoplex)
over 2 years ago
Comment Post #286301 > You can shorten your for-loop No, I can't. Shortening it the way you did results in omitting the `in` keyword. This obviously goes against the rule of including **all** language keywords. > and save a few spaces on the numerical constants Yes, that's true. I will edit my answer. Thanks (ag...
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over 2 years ago
Edit Post #286300 Post edited:
shortened the code (thanks to orthoplex)
over 2 years ago
Comment Post #286300 Thanks! I will edit the code.
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over 2 years ago
Edit Post #286301 Initial revision over 2 years ago
Answer A: Keyword golfing
Lua 5.4.4, 147 bytes ``` local function f()goto l::l::return end for in f do end if true and false then elseif""then else end repeat until""or not nil while""do break end ``` Try it online! Check the list of keywords. Thanks to @orthoplex for more shortening.
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over 2 years ago
Edit Post #286300 Post edited:
Provided a link to try it online.
over 2 years ago
Edit Post #286300 Initial revision over 2 years ago
Answer A: Looping counter
Lua, 31 bytes ``` =''::::=..''print()goto ``` Try it online!
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over 2 years ago