Problem Detail - (False)faces

ID: 1046

Type: RemoteJudge

1000ms

256MiB

Difficulty: (None)

Uploaded By:

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题目描述

ß给定一个两边各有N个点的二分图

ß判断完美匹配的个数是否是4的倍数

ßN≤300

2//多组数据，这个值不超过100
4
1100
1100
0011
0011
3
111
011
001

YES
NO