Posts by Shaggy
JavaScript, 20 bytes Outputs false for truthy and true for falsey. a=>a.some(x=>x-a[0]) Try it online! Outputs true and false as normal. a=>new Set(a).size<2 Try it online!
Japt v1.4.5 -!, 8 bytes à ËryÃa1 Try it or run all test cases à ËryÃa1 :Implicit input of array à :Combinations (with the original array first) Ë :Map r ...
Japt, 12 bytes Outputs an empty array if no solution is possible. Íà5 â fÈx ¶V Try it Íà5 â fÈx ¶V :Implicit input of array U & target integer V Í :Sort U à5 ...
Japt, 26 bytes aBcDeFgHiJkLmNoPqRsTuVwXyZ Try it Trivial Solution, 26 bytes ABCDEFGHIJKLMNOPQRSTUVWXYZ Try it Explanations In the first solution each lowercase letter is a method that ge...
There is a new project called Attempt This Online intended as an alternative to TIO. It's pretty nascent so doesn't yet support the same volume of languages as TIO and the only version of JavaScrip...
Japt -R, 16 15 bytes Uses spaces for #s and "s for Qs. ##Ë64ì £QùXÄÃy Test it (footer reformats the output to use the characters from the spec) This one uses 1s for #s. ##Ë64ì £#ÿ¤hXQ ...
Japt, 13 bytes Takes input as a character array. mnG ìUrÔÄ ªUl Try it mnG\nìUrÔÄ ªUl :Implicit input of character array U m :Map n : Convert from bas...
JavaScript, 28 bytes alert(`Hello, ${prompt()}!`) Try it online!
JavaScript, 76 bytes Outputs an array of lines. s=>[...s+=[...s].reverse().join``].map((c,x)=>s[-~x]?c.padEnd(x)+(x?c:``):s) Try it online!
JavaScript, 37 bytes I/O as character arrays. a=>b=>b.flatMap(x=>a.map(y=>x<y?x:y)) Try it online!
Japt -m, 5 bytes Takes input in reverse order. Sadly, Japt has no minimum built-in for strings. VcmUc Try it VcmUc :Implicit map of each U in the first input string V :Second inp...
Japt, 17 bytes Needs some more work. É?[U]cßÂUp½+Uu:1ì Try it If there's a proof that the length of the sequence for any given n never exceeds n**3 then ... Japt, 14 bytes NcU³Æ=Âp½+UuÃâ ...
JavaScript, 37 32 bytes Outputs a comma delimited string. f=n=>n-1?n+[,f(n**(.5+n%2)|0)]:n Try it online!
Japt -R, 12 bytes õÈ"/\\"mpXÃû Try it õÈ"/\\"mpXÃû :Implicit input of integer õ :Range [1,input] È :Map each X "/\\" : Literal string m ...
JavaScript, 25 bytes The function is called with f(g)(n), where g is a function. g=>h=n=>n-1?g(h(n-1),n):1 Try it online!
Japt, 4 bytes Takes the operator as a string but would also work without modification using a function by assigning it to variable V. That can be done in the header by leaving a blank line and the...
Rockstar, cracked by Hakerh400, 126 bytes I never thought of languages that would ignore everything except the strings - I should have stated that the solution should be irreducible. Hakerh400 get...
Cracks Mark Girrafe's answer: Rust fn main(){print!("Cops and Robbers")} Try it online!
Japt, cracked by Razetime, 44 bytes ((Cops)&(Robbers))`¬ps d bÞ`¸ËhDÎmEgviuø Test it `...`¸ËhDÎmEgviuø `...` :Compressed string "cops and robbers" ¸ ...
JavaScript, 44 bytes a=>g=n=>a.every(([p,q])=>(x=n*p/q)%1)?n:g(x) Try it online!
Japt v2.0a0, 18 bytes The r÷ can be removed if we can take an array of floats instead. T=V£*Xr÷Ãæv1)?ßT:U Try it T=V£*Xr÷Ãæv1)?ßT:U :Implicit input of integer U and 2D-array V T= ...
Japt -R, 16 bytes This feels far too long for the task at hand - what am I missing?! ;Bó v ¬£14îUiX q Test it ;Bó\nv ¬£14îUiX q ;B :Uppercase alphabet ó ...
Japt -R, 27 bytes Lõ@"FiBu"ò úz4 ËpXv°EÑÄìªX Test it Lõ@"FiBu"ò úz4 ËpXv°EÑÄìªX L :100 õ :Range [1,L] @ ...
Japt -h, 13 12 9 bytes à m+V kbU Try it à m+V kbU :Implicit input of strings U & V à :Combinations of U m :Map +V : Append V k :Filt...
Japt -m, 8 7 bytes ð òÎmiV Try it ð òÎmiV :Implicit map of each sub-array at 0-based index V ð :Indices of truthy (i.e., non-zero) elements ò :Partition between eleme...
