Pei_1997的博客

Description A 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. T

A network administrator manages a large network. The network consists of N computers and M links between pairs of computers. Any pair of computers are connected directly or indirectly by successive li

A number of schools are connected to a computer network. Agreements have been developed among those schools: each school maintains a list of schools to which it distributes software (the “receiving sc

Caocao was defeated by Zhuge Liang and Zhou Yu in the battle of Chibi. But he wouldn't give up. Caocao's army still was not good at water battles, so he came up with another idea. He built many island

There is a graph G=⟨VG,EG⟩ with |VG|=n and |EG|=m, and a magic tree T=⟨VT,ET⟩) rooted at 1, which contains m vertices. Each vertex of the magic tree corresponds to an edge in the original graph G ...