LeetCode: Beautiful Arrangement II Solution
1/**2 * @param {number} n3 * @param {number} k4 * @return {number[]}5 */6var constructArray = function (n, k) {7 const res = []8 let from = 19 let to = k + 11011 while (from <= to) {12 res.push(from++)13 from <= to && res.push(to--)14 }15 for (let i = k + 2; i <= n; i++) {16 res.push(i)17 }1819 return res20}
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