B - Array You’ve got an array a, consisting of n integers: a1, a2, …, an. Your task is to find a minimal by inclusion segment [l, r] (1 ≤ l ≤ r ≤ n) such, that among numbers al, al + 1, …, ar there are exactly k distinct numbers. Segment [l, r] (1 ≤ l ≤ r ≤ n; l, r are integers) of length m = r -...