第十一届湖南省省赛 - Internet of Lights and Switches(二分 + 位运算)
InternetofLightsandSwitches题目描述Youareafanof"InternetofThings"(IoT,物联网),soyoubuildaniceInternetofLightsandSwitchesinyourhugemansion.Formally,therearenlightsandmswitches,eachswitchcontrolsoneormorelight