摘要:
https://vjudge.net/problem/POJ-3208 The number 666 is considered to be the occult “number of the beast” and is a well used number in all major apocaly 阅读全文
摘要:
Description 小明有一个数列。 a[0] = a[1] = 1。 a[i] = i * a[i - 1] * a[i - 2](i≥2)。 小明想知道a[n]的因子个数。 Input 输入仅一个正整数n。 Output 输出a[n]的因子个数mod 1,000,000,007的值。 Sam 阅读全文