传送门 今天在HackerRank上翻到一道高精度题,于是乎就写了个高精度的模板,说是模板其实就只有乘法而已. Extra long factorials Authored by vatsalchanana on Jun 16 2015 Problem Statement You are given an integer N. Print the factorial of this number. N!=N×(N−1)×(N−2)×⋯×3×2×1 Note: Factorials of N>20…

时间限制:1 秒 内存限制:32 兆 特殊判题:否 提交:2109 解决:901 题目描述: John von Neumann, b. Dec. 28, 1903, d. Feb. 8, 1957, was a Hungarian-American mathematician who made important contributions to the foundations of mathematics, logic, quantum physics, meteorology, scienc…

Description John von Neumann, b. Dec. 28, 1903, d. Feb. 8, 1957, was a Hungarian-American mathematician who made important contributions to the foundations of mathematics, logic, quantum physics,meteorology, science, computers, and game theory. He wa…

145 is a curious number, as 1! + 4! + 5! = 1 + 24 + 120 = 145. Find the sum of all numbers which are equal to the sum of the factorial of their digits. Note: as 1! = 1 and 2! = 2 are not sums they are not included. 题目大意: 145 是一个奇怪的数字, 因为 1! + 4! + 5!…

Factorials The factorial of an integer N, written N!, is the product of all the integers from 1 through N inclusive. The factorial quickly becomes very large: 13! is too large to store in a 32-bit integer on most computers, and 70! is too large for m…

Factorials 阶乘 题目大意:给你一个数n,求出n ! 的最后一个非零位. 注释:n<=4200 想法:开始的想法是觉得这道题应该比较的有趣,因为我们知道,一个数的阶乘的最后的非零位后面或者是0,或者n<=4,所以,我们思考,如何才能有效的登出这个非零位.首先,我们发现,这个非零位后面零的个数是和n!中5的个数有关的,所以,我们思考:如果我们使得这个阶乘没有5会怎么样.想着想着,我相信你的头脑里会自然地蹦出一个定理——唯一分解定理.为什么?因为只有在这个定理的辅助下你才可以将5全部提取…

You are asked to calculate factorials of some small positive integers. Input An integer t, 1<=t<=100, denoting the number of testcases, followed by t lines, each containing a single integer n, 1<=n<=100. Output For each integer n given at inpu…

时间限制:1 秒 内存限制:32 兆 特殊判题:否 提交:1845 解决:780 题目描述: John von Neumann, b. Dec. 28, 1903, d. Feb. 8, 1957, was a Hungarian-American mathematician who made important contributions to the foundations of mathematics, logic, quantum physics, meteorology, scienc…

Finding factorials are easy but they become large quickly that is why Lucky hate factorials. Today he have another task related to factorials. For a given number n how many ways factorial n can expressed as a sum of two or more consecutive positive i…

先上题目 Sum of Factorials Time Limit:500MS     Memory Limit:32768KB     64bit IO Format:%lld & %llu Description Given an integer n, you have to find whether it can be expressed as summation of factorials. For given n, you have to report a solution such…