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Problem 5123. -- [Lydsy1712月赛]线段树的匹配

5123: [Lydsy1712月赛]线段树的匹配

Time Limit: 1 Sec  Memory Limit: 256 MB
Submit: 250  Solved: 110
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Description

 http://www.lydsy.com/JudgeOnline/upload/201712/prob12.pdf

Input

Output

Sample Input

Sample Output

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Source

claris原创,本oj版权所有,翻版必究

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