import random ran = int(random.randint(1,100)) print(ran) while True: num = int(input(“请输入0-100间的数字:”)) if num < 0 or num > 100: input(“对不起,输入有误”) else: if num > ran: print(“大了”) elif num < ran: print(“小了”) elif num == ran: print(“猜对了!”) break
Montgomery乘法的数学表达式是A * B * R ^ (-1)mod M。A、B是同位长大数,R是2的M(位长)的次方,R ^ (-1)是指R相对于M的模逆,即R ^ (-1)满足以下条件的数:R * R ^ (-1) mod M = 1;这个条件成立的充要条件是R与M互素,这一点只需要M为奇数即可。
使用蒙哥马利乘法可以做…
POJ1270 Following Orders(拓扑排序+dfs回溯)
Description
Order is an important concept in mathematics and in computer science. For example, Zorn’s Lemma states: ``a partially ordered set in which every chain has an upper bound contains a maximal element.’…