artwork task b1,b2,… ,bn, the cluster an is parted into two new exhibits a(0) and a(1), where a(0) is the sub-arrangement of all white components in an and a(1) is the sub-grouping of all dark components in a. For instance, assuming a=[1,2,3,4,5,6] and b=[0,1,0,1,0,0], a(0)=[1,3,5,6] and a(1)=[2,4]. The number of portions in a cluster c1,c2,… ,ck, indicated seg(c), is the number of components if we blend all nearby components with a similar worth in c. For instance, the
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As per an artwork task b1,b2,… ,bn, the cluster an is parted into two new exhibits a(0) and a(1), where a(0) is the sub-arrangement of all white components in an and a(1) is the sub-grouping of all dark components in a. For instance, assuming a=[1,2,3,4,5,6] and b=[0,1,0,1,0,0], a(0)=[1,3,5,6] and a(1)=[2,4].
The number of portions in a cluster c1,c2,… ,ck, indicated seg(c), is the number of components if we blend all nearby components with a similar worth in c. For instance, the number of fragments in [1,1,2,2,3,3,3,2] is 4, on the grounds that the exhibit will become [1,2,3,2] subsequent to blending adjoining components with a similar worth. Particularly, the number of portions in an unfilled exhibit is 0.
Homer needs to find an artistic creation task b, as per which the number of sections in both a(0) and a(1), for example seg(a(0))+seg(a(1)), is pretty much as extensive as could be expected. Track down this number.
Input
The principal line contains an integer n (1≤n≤105).
The subsequent line contains n integers a1,a2,… ,an (1≤
Output
Output a solitary integer, demonstrating the maximal conceivable complete number of sections
Step by step
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