• 个人简介

    这个世界既不黑也不白,而是一道精致的灰。

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  • 最近活动

    This person is lazy and didn't join any contests or homework.
  • 最近编写的题解

    This person is lazy and didn't write any solutions.
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题目标签

系统测试
1
图论
1
最小生成树
1
模拟
1
graphs
1
greedy
1
implementation
1
shortest paths
1
sortings
1
*1800
1