Exponentiation Description Problems involving the computation of exact values of very large magnitude and precision are common. For example, the computation of the national debt is a taxing experience for many computer systems. This problem requires…

uva748 - Exponentiation   Exponentiation  Problems involving the computation of exact values of very large magnitude and precision are common. For example, the computation of the national debt is a taxing experience for many computer systems. This pr…

Exponentiation 大数a的n次幂,直到读到EOF(文件结尾)为止,其中忽略小数后面的0 1 import java.util.*; 2 import java.math.*; 3 import java.text.*; 4 public class Main 5 { 6 public static void main(String[] args) 7 { 8 Scanner cin=new Scanner(System.in); 9 BigDecimal a; 10 int n; 1…

//大数继续,额,要吐了. Problem Description Problems involving the computation of exact values of very large magnitude and precision are common. For example, the computation of the national debt is a taxing experience for many computer systems.  This problem r…

POJ做的非常好,本题就是要求一个无限位大的指数乘法结果. 要求基础:无限大数位相乘 额外要求:处理特殊情况的能力 -- 关键是考这个能力了. 所以本题的用例特别重要,再聪明的人也会疏忽某些用例的. 本题对程序健壮性的考查到达了变态级别了. 某人贴出的測试用例数据地址: http://poj.org/showmessage?message_id=76017 有了这些用例,几下调试就过了. 我关键漏了的用例: 000.10  1 000000  1 000.00  1 .00000  0 0000…

解题思路 这道题属于高精度乘法运算,要求输入一个实数R一个指数N,求实数R的N次方,由于R有5个数位,而N又特别大,因此用C++自带的数据类型放不下. 解题思路是通过数组储存每次乘积结果和底数的每一位数,按照乘法上下算式的方法,计算底数乘数数组每一位与临时结果数组的每一位的乘积,(因为算术运算中是从数的后面往前算的,这里存储数时要先倒序,输出时再颠倒过来,)然后偏移相加,判断得出的临时结果数组的每一位是否大于9,通过除法和取模实现进位和取余.至此得出一个有很多无效数位的结果数组(很多无效的0).…

BUPT2017 wintertraining(15) #6A 题意 求\(R^n\) ( 0.0 < R < 99.999 )(0 < n <= 25) 题解 将R用字符串读进来,找到小数点的位置,然后转为整数. 用高精度乘法和快速幂计算.输出时要确定一下小数点的位置. 代码 #include <cstdio> #include <cstring> #include <algorithm> #include <iostream> u…

注意题目中的这句话he put the strawberries on the cake randomly one by one,第一次选择草莓其实有N个可能,以某一个草莓为开头,然后顺序的随机摆放,所以最后的概率为n/m^(n-1),最后通过大数模板搞定该题的化简. C++代码 #include<iostream> #include<cstring> #include<cstdio> #include<iomanip> #include<algori…

题目链接:https://cn.vjudge.net/problem/POJ-1001 以前写过一个高精度乘法,但是没有小数点,实现起来也没什么难得, 现在把代码都般过来,等会把旧电脑弄一弄,暂时就不写题解了 代码 #include <cstdio> #include <cstring> struct BigInteger{ int dot, size; char num[600]; BigInteger(int size=0, int dot=0):size(size),dot(…

PAT:A1024 Palindromic Number A number that will be the same when it is written forwards or backwards is known as a Palindromic Number. For example, 1234321 is a palindromic number. All single digit numbers are palindromic numbers.Non-palindromic numb…