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export default function removeDuplicates(nums: number[]): number {    if (nums.length === 0) return 0;    let current = nums[0];    let count = 1;    const should_delete: number[] = [];    for (const [i, n] of nums.entries()) {        if (i === 0) continue;        if (n === current) {            should_delete.push(i);        } else {            current = n;            count++;        }    }    should_delete.forEach((i) => (nums[i] = Infinity));    const temp = nums.filter((a) => a < Infinity);    temp.forEach((v, i) => (nums[i] = v));    return count;}