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3574 8833 9826 -5860 -4082 -7410 308 -1646 -6308 5838 `30:T610,part1ref = async (input, len = 5000) => { let numbers = input .trim() .split("\n") .map((num) => parseInt(num)); const first = { index: 0, value: numbers[0], next: null, previous: null }; let current = first; for (let i = 1; i < numbers.length; i++) { let node = { index: i, value: numbers[i], next: null, previous: current }; current.next = node; current = node; } current.next = first; first.previous = current; current = current.next; let head; for (let i = 0; i < len; i++) { let node = current; while (node.index != i) node = node.next; if (node.value > 0) { for (let move = 0; move < node.value; move++) { let index = node.index, value = node.value; node.index = node.next.index; node.value = node.next.value; node.next.index = index; node.next.value = value; node = node.next; } } else if (node.value < 0) { for (let move = 0; move < Math.abs(node.value); move++) { let index = node.index, value = node.value; node.index = node.previous.index; node.value = node.previous.value; node.previous.index = index; node.previous.value = value; node = node.previous; } } head = node; } return head; let sum = []; while (current.value != 0) current = current.next; return current; for (let grove = 0; grove < 3; grove++) { for (let i = 0; i < 1000; i++) current = current.next; sum.push(current.value); } return sum; }31:[] 2c:{"id":"b728cd12896331e4","slug":null,"title":"Day 20: Grove Positioning System","thumbnail":"ab419c68e6430e4e711bf17f804b7b3c20ad320d809ad70432c9a57a7b1d52b2","access_level":"public","create_time":"$D2023-11-24T06:36:50.797Z","update_time":"$D2023-11-24T06:36:50.797Z","view_time":null,"first_public_time":"$D2023-11-24T06:36:50.797Z","fork":{"id":"e14ae02de19006d5","slug":null,"title":"Day 20: Grove Positioning System","owner":{"id":"31b136fdb993b00a","login":"visnup","name":"Visnu Pitiyanuvath"}},"stars":0,"starred":false,"owner":{"type":"team","id":"9784867a3e59436b","login":"linard-y","name":"","avatar_url":"https://avatars-next.observableusercontent.com/0ce44546efae24745b35d9327acbc99a3f3fdaeac3595375f92848f133b06ded","tier":"starter_2024"},"version":315,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"c6e84137b8a39d94","login":"linard-y","name":"","avatar_url":"https://avatars-next.observableusercontent.com/0ce44546efae24745b35d9327acbc99a3f3fdaeac3595375f92848f133b06ded","tier":null}],"members":[{"type":"individual","id":"c6e84137b8a39d94","login":"linard-y","name":"","avatar_url":"https://avatars-next.observableusercontent.com/0ce44546efae24745b35d9327acbc99a3f3fdaeac3595375f92848f133b06ded","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"subscribed":null,"forks":0,"collection":{"id":"5a7d4476817b0d1c","slug":"advent-of-code-2022","title":"Advent of Code 2022","owner":{"id":"9784867a3e59436b","login":"linard-y","name":""}},"type":"notebook","body":{"title":"Day 20: Grove Positioning System","cells":[{"id":0,"value":"# Day 20: Grove Positioning System\n\nIt's finally time to meet back up with the Elves. When you try to contact them, however, you get no reply. Perhaps you're out of range?\n\n– [Advent of Code 2022, Day 20](https://adventofcode.com/2022/day/20)","pinned":false,"hidden":false,"mode":"md"},{"id":7,"value":"list = (data) => {\n const list = data\n .trim()\n .split(\"\\n\")\n .map((n) => ({ prev: null, n: +n, next: null }));\n let prev = list[list.length - 1];\n for (const p of list) {\n prev.next = p;\n p.prev = prev;\n prev = p;\n }\n return list;\n}","pinned":true,"hidden":false,"mode":"ojs"},{"id":60,"value":"function mix(list, len = list.length) {\n // yield [...print(list)];\n let zero = list[0];\n for (let i = 0; i < len; i++) {\n const p = list[i];\n if (p.n === 0) {\n zero = p;\n continue;\n }\n const dir = p.n > 0 ? \"next\" : \"prev\";\n const hops = p.n > 0 ? p.n : -p.n + 1;\n let after = p;\n for (let i = 0; i < hops; i++) after = after[dir];\n // yield { n: p.n, l: after.n, r: after.next.n };\n // extract\n const { prev, next } = p;\n prev.next = next;\n next.prev = prev;\n // insert\n p.next = after.next;\n p.prev = after;\n p.next.prev = p.prev.next = p;\n // yield [...print(list)];\n }\n return zero;\n}","pinned":true,"hidden":false,"mode":"ojs"},{"id":68,"value":"function* print(n) {\n while (n.n !== 0) n = n.next;\n const zero = n;\n do {\n yield n.n;\n n = n.next;\n } while (n !== zero);\n}","pinned":true,"hidden":false,"mode":"ojs"},{"id":226,"value":"mix(list(sample), 1)","pinned":true,"hidden":false,"mode":"ojs"},{"id":187,"value":"part1ref(data, 1)","pinned":true,"hidden":false,"mode":"ojs"},{"id":64,"value":"function* coordinates(p) {\n for (let t = 0; t < 3; t++) {\n for (let i = 0; i < 1000; i++) p = p.next;\n yield p.n;\n }\n}","pinned":true,"hidden":false,"mode":"ojs"},{"id":130,"value":"part1 = d3.sum(coordinates(mix(list(data)))) // -10214, 10214 (too low)","pinned":true,"hidden":false,"mode":"ojs"},{"id":5,"value":"sample = `\n1\n2\n-3\n3\n-2\n0\n4\n`","pinned":false,"hidden":false,"mode":"ojs"},{"id":136,"value":"$2f","pinned":false,"hidden":false,"mode":"ojs"},{"id":184,"value":"$30","pinned":true,"hidden":false,"mode":"ojs"}],"files":"$W31","stdlib":"1","titling":"auto"}} 2d:"$2c:body"