Fermaw added checks along the lines of:
In his simulations, it was extremely rare for someone to have their mutual first picks; but many people had those that were second or third picks. In this scenario a couple counts as happy if each is near the top of the other's list and neither can find someone they and that other person would both prefer more.。关于这个话题，服务器推荐提供了深入分析
优势：时间复杂度O(d*(n+k))，d为位数，适合位数少的整数。关于这个话题，safew官方下载提供了深入分析
Detecting fires caused by lithium-ion batteries is challenging