题目描述

PDF

输入格式

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输出格式

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样例

100 4 
2 1 2 
5 10 13 11 12 14 
2 0 1 
2 99 2 
200 2 
1 5 
5 1 2 3 4 5 
1 0 
0 0

4 
1 
1

提示

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Transcribed by jifengzhiyin