All measurements here are for a single player; it’s much harder to provide consistent numbers for bandwidth with larger numbers of players. In general bandwidth usage is higher with more players, but these optimizations still help a lot.
* @param arr 待排序数组
，推荐阅读同城约会获取更多信息
Less Than (6): Everything in this space must be less than 6. The answer is 1-3, placed horizontally.
tasks2 := make([]task, len(tasks))