let pending = new Uint8Array(0);
7️⃣ 希尔排序 (Shell Sort)
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只值20元的阿爸，自己觉得人生没有什么遗憾，自己能活下来，能娶到老婆，能把两个孩子养大，孩子能上大学，这些都是三十年前那个在工地搬砖的年轻人想都不敢想的事。
* @param arr 待排序数组
But Reddit's Wong feels people are visiting Reddit because of the "authenticity, the content, and because they're discussing things that you really can't get elsewhere".