16 lines
627 B
JavaScript
16 lines
627 B
JavaScript
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curve = (state)=>(state + "0" + state.split("").reverse().map((char)=>((char == "0") ? "1" : "0")).join(""));
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curveLoop = (str, len)=>{
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next = curve(str);
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console.log(next.length);
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return (next.length >= len) ? (next.substr(0, len)) : curveLoop(next, len);
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};
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checksum = (str)=>(str.split("").reduce((a, b, i, arr)=>{
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if(i%2 == 0){
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a.push([b, arr[i+1]]);
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}
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return a;
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}, [])).map((pair)=>((pair[0] == pair[1]) ? "1" : "0")).join("");
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checksumLoop = (str) => {var sum = checksum(str); return (sum.length%2 == 0) ? (checksumLoop(sum)) : (sum)}
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console.log(checksumLoop(curveLoop("01000100010010111", 35651584)));
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