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2073 - 【NOIP2018】T2 龙虎斗
2073 - 【NOIP2018】T2 龙虎斗
Input
Output
Examples
Input
6 2 3 2 3 2 3 4 6 5 2
Output
2
Input
6 1 1 1 1 1 16 5 4 1 1
Output
1
Hint
Time Limit
1 second
Memory Limit
256 MB
Submit
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Submit:2073. 【NOIP2018】T2 龙虎斗
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