优化：如果某轮没有发生交换，说明已有序，提前结束
對於張又俠下台的原因，眾說紛紜，中國官方的公開理由都在《解放軍報》1月25日發表的社論之中。
，更多细节参见heLLoword翻译官方下载
Entered a fast-growing market.
Your lifetime subscription includes new content, with seasonal and cultural updates. You’ll also get an exclusive surprise gift mailed directly to your door.，更多细节参见51吃瓜
Waning Gibbous - The Moon starts losing light on the right side. (Northern Hemisphere)，这一点在同城约会中也有详细论述
int n = sizeof(arr)/sizeof(arr[0]);