Probability, Statistics, Distributed Systems, Software Engineering, Interview Questions.
P(M-K, N-1, H). For the base cases: P(M, 1, H) = 0 if M > H else 1 P(0, N, H) = 1 and P(M, N, H) = 0 if M < 0 Python implementation: def ncr(n): cache = [[0]*(n+1) for i in range(n+1)] for i in range(n+1): for j in range(i+1): if j == 0 or i == j: cache[i][j] = 1 else: cache[i][j] = cache[i-1][j] +