#BZOJ2834. 回家的路
回家的路
No submission language available for this problem.
题目描述
输入格式
输出格式
2 1 1 2 1 1 2 2
5
数据范围与约定
N<=20000,M<=100000
No submission language available for this problem.
2 1 1 2 1 1 2 2
5
N<=20000,M<=100000
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