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Code-golf is a competition to solve a particular problem in the fewest bytes of source code.

7 votes

Help! My calculator broke! (Turn integer expression into calculator keystrokes)

Javascript (ES6), 535 - 80 (15% bonus) = 455 bytes f=z=>{a=[],i=0;c=n=>{while(n[M='match'](/\(/)){n=n[R='replace'](/\(([^()]+)\)/g,(q,p)=>{m=++i;a[m]=c(p);return'['+m+']'})}n=n[R](/(\](?=\[|[\d])|[\d …
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  • 231
6 votes

Molecules to Atoms

JavaScript ES6, 366 bytes function f(i){function g(a,b,c){b=b.replace(/[[(]([^[(\])]+?)[\])](\d*)/g,g).replace(/([A-Z][a-z]?)(\d*)/g,function(x,y,z){return y+((z||1)*(c||1))});return(b.search(/[[(]/) …
styletron's user avatar
  • 231