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export default function findMinDifference(timePoints: string[]): number {    const n = timePoints.length;    if (n > 1440) {        return 0;    }    timePoints.sort();    let ans = Number.MAX_VALUE;    const t0Minutes = getMinutes(timePoints[0]);    let preMinutes = t0Minutes;    for (let i = 1; i < n; ++i) {        const minutes = getMinutes(timePoints[i]);        ans = Math.min(ans, minutes - preMinutes); // 相邻时间的时间差        preMinutes = minutes;    }    ans = Math.min(ans, t0Minutes + 1440 - preMinutes); // 首尾时间的时间差    return ans;}
function getMinutes(t: string) {    const a = t.split("").map(Number);    return ((                        a[0]                    ) * 10 + (a[1])) * 60 + (a[3]) * 10 + (a[4]);}