UVa11183 - Teen Girl Squad(最小树形图-裸) - mfmdaoyou - 博客园
000). Girls are numbered from 0 ton-1, and you are girl 0. The nextmlines will each contain 3 integers,u,vandw, meaning that a call from girluto girlvcostswcents(0 <=w<= 1000). No other calls are possible