deno.land / x / masx200_leetcode_test@10.6.5 / maximum-swap / index.ts

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export default function maximumSwap(num: number): number { const charArray = [..."" + num]; const n = charArray.length; let maxIdx = n - 1; let idx1 = -1, idx2 = -1; for (let i = n - 1; i >= 0; i--) { if (charArray[i] > charArray[maxIdx]) { maxIdx = i; } else if (charArray[i] < charArray[maxIdx]) { idx1 = i; idx2 = maxIdx; } } if (idx1 >= 0) { [charArray[idx1], charArray[idx2]] = [charArray[idx2], charArray[idx1]]; return parseInt(charArray.join("")); } else { return num; }}
masx200_leetcode_test
leetcode题解和一些测试工具
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4 months ago