k--; // 剩余删除名额减1（关键：控制删除位数，保证保留足够长度）
In corporate deals, a hostile takeover is when a company moves to acquire another firm without the consent of the target company's management, typically by offering to buy its target's shares.
，详情可参考同城约会
第六十九条 对裁决书中的文字、计算错误或者仲裁庭已经裁决但在裁决书中遗漏的事项，仲裁庭应当补正；当事人自收到裁决书之日起三十日内，可以请求仲裁庭补正。
Many programmers use malloc() and free() and pay no more mind to "allocating memory", but I often find 2-20× speed improvements by rethinking memory
number of rounds so that the memory is under control: