olahiuj的博客

DescriptionIn the city named ACM, there aren’t any network stations by now, what’s a pity! So the government plans to establish a complete network, and decides to set up a team in charge of this projec

【问题描述】n个城市之间有通讯网络，每个城市都有通讯交换机，直接或间接与其它城市连接。因电子设备容易损坏，需给通讯点配备备用交换机。但备用交换机数量有限，不能全部配备，只能给部分重要城市配置。于是规定：如果某个城市由于交换机损坏，不仅本城市通讯中断，还造成其它城市通讯中断，则配备备用交换机。请你根据城市线路情况，计算需配备备用交换机的城市个数，及需配备备用交换机城市的编号。【输入格式】输入文件有若干

DescriptionA Telephone Line Company (TLC) is establishing a new telephone cable network. They are connecting several places numbered by integers from 1 to N . No two places have the same number. The li

DescriptionA Telephone Line Company (TLC) is establishing a new telephone cable network. They are connecting several places numbered by integers from 1 to N. No two places have the same number. The lin

DescriptionBlackouts and Dark Nights (also known as ACM++) is a company that provides electricity. The company owns several power plants, each of them supplying a small area that surrounds it. This org