递归式2 ,n=1 Gf(n-1,m)+m)%n,1<n<m o f(n, m) (+=)9y减1)xn n≥m 1 n o olm+log-- m)递归式2  𝑓 𝑛, 𝑚 = 0 ,𝑛 = 1 𝑓 𝑛 − 1, 𝑚 + 𝑚 % 𝑛 , 1 < 𝑛 < 𝑚 𝑓 𝑛− 𝑛 𝑚 ,𝑚 −𝑛%𝑚 % 𝑛− 𝑛 𝑚 ×𝑚 𝑚−1 ,𝑛 ≥ 𝑚  𝑂 𝑚 + 𝑙𝑜𝑔 𝑚 𝑚−1 𝑛 𝑚