8 lines
508 B
JavaScript
8 lines
508 B
JavaScript
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nextline = (line)=>(line.split("").map((char, i, arr)=>([arr[i-1], arr[i], arr[i+1]]).map((char)=>(char ? char : ".")).join("")).map((str)=>(["^^.", ".^^", "..^", "^.."].indexOf(str) != -1)).map((trap)=>(trap ? "^" : ".")).join(""));
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var lines = [".^^^^^.^^^..^^^^^...^.^..^^^.^^....^.^...^^^...^^^^..^...^...^^.^.^.......^..^^...^.^.^^..^^^^^...^."];
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while(lines.length < 400000){
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lines.push(nextline(lines[lines.length - 1]));
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}
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console.log(lines.map((line)=>(line.replace(/\^/g, ""))).join("").length);
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