Poj(2784)，二進制枚舉最小生成樹

題目鏈接：http://poj.org/problem?id=2784 Buy or Build Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 1528   Accepted: 592 Description World Wide Networks (WWN) is a leading company that opera

>>阅读原文<<