快速指数算法+python代码

Posted 2022-12-22 kexve

算法原理：

 

 

Python代码：

 

1 def kuaiSuZhiShu(di, zhiShu, mod):
2     zhiShu2 = bin(zhiShu)[2:]
3     length = len(zhiShu2)
4     jieGuo = di**int(zhiShu2[0])
5     for i in range(1, length):
6         jieGuo = jieGuo**2 % mod
7         jieGuo = jieGuo*di**int(zhiShu2[i]) % mod
8     return jieGuo
9 print(kuaiSuZhiShu(11, 23, 187))