E-triples II_2019牛客暑期多校训练营（第四场）

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2019牛客暑期多校训练营（第一场）A题【单调栈】（补题）

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2019牛客暑期多校训练营（第一场）A Equivalent Prefixes（单调栈/二分+分治）

链接:https://ac.nowcoder.com/acm/contest/881/A来源:牛客网 Two arrays u and v each with m distinct elements are called equivalent if and only if RMQ(u,l,r)=RMQ(v,l,r)RMQ(u,l,r)=RMQ(v,l,r) for all 1≤l≤r≤m1≤l≤r≤m where RMQ(w,l,r)RMQ(w,l,r) denotes the index of…