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Get the index h such that everything strictly smaller than h has: p i = False, and all i >= h, we have p h = True

returns Nothing if no element satisfies p

running time: \(O(\log^2 n + T*\log n)\), where \(T\) is the time to execute the predicate.

Partition the seq s given a monotone predicate p into (xs,ys) such that

all elements in xs do *not* satisfy the predicate p all elements in ys do satisfy the predicate p

all elements in s occur in either xs or ys.

running time: \(O(\log^2 n + T*\log n)\), where \(T\) is the time to execute the predicate.

Given a monotonic predicate p, a lower bound l, and an upper bound u, with: p l = False p u = True l < u.

Get the index h such that everything strictly smaller than h has: p i = False, and all i >= h, we have p h = True

running time: \(O(\log(u - l))\)