Hyperloglog, Probability, Hash Function, Cardinality Estimation, Dynamic Programming.
return dp[(n, x, y)] if n == 1: if x+y == 1: if x == 1: dp[(n, x, y)] = a else: dp[(n, x, y)] = b else: dp[(n, x, y)] = 0 return dp[(n, x, y)] u = H(n-1, x, y, dp) if (n-1, x, y) not in dp \ else dp[(n-1, x, y)] v = H(n-1, x-1, y, dp) if (n-1, x-1, y) not in dp \ else dp[(n-1, x-1, y)] w = H(n-1,