【PKU1001】Exponentiation(高精度乘法)
2024-10-10 04:59:24
Exponentiation
Time Limit: 500MS | Memory Limit: 10000K | |
Total Submissions: 145642 | Accepted: 35529 |
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 that you write a program to compute the exact value of Rn where R is a real number ( 0.0 < R < 99.999 ) and n is an integer such that 0 < n <= 25.
Input
The input will consist of a set of pairs of values for R and n. The R value will occupy columns 1 through 6, and the n value will be in columns 8 and 9.
Output
The output will consist of one line for each line of input giving the exact value of R^n. Leading zeros should be suppressed in the output. Insignificant trailing zeros must not be printed. Don't print the decimal point if the result is an integer.
Sample Input
95.123 12
0.4321 20
5.1234 15
6.7592 9
98.999 10
1.0100 12
Sample Output
548815620517731830194541.899025343415715973535967221869852721
.00000005148554641076956121994511276767154838481760200726351203835429763013462401
43992025569.928573701266488041146654993318703707511666295476720493953024
29448126.764121021618164430206909037173276672
90429072743629540498.107596019456651774561044010001
1.126825030131969720661201
高精度乘法 问了下晖哥ICPC比赛时可以用多种语言混合提交 这里就给出Java的写法 建议掌握Java的大数类
C++的版本自己感兴趣的自己去敲一敲好了 把小数点去掉乘法最后加上小数点就好了
import java.math.BigDecimal;
import java.util.Scanner; public class Main {
public static void main(String[] args) {
@SuppressWarnings("resource")
Scanner sc = new Scanner(System.in);
while (sc.hasNext()) {
BigDecimal bd = new BigDecimal(sc.next());
BigDecimal result = bd.pow(sc.nextInt());
String s = result.stripTrailingZeros().toPlainString();
if (s.startsWith("0"))
s = s.substring(1);
System.out.println(s);
}
}
}
最新文章
- 阿里云的9折推荐码 8DIER4
- C#:IText构造PDF文件
- Java基础知识强化之IO流笔记45:IO流练习之 把集合中的数据存储到文本文件案例
- iOS获取设备唯一编号,就算删除app从新安装也不变的方法
- docker 创建mysql镜像,并成功进行远程连接
- pm2日志管理pm2-logrotate介绍
- 【转】C盘不能扩展卷怎么回事 C盘扩展卷灰色的解决办法
- pycharm 中自动补全代码提示前符号 p,m ,c,v, f 是什么意思
- jenkins中配置svn 出现absolute path is not allowed
- algid parse error, not a sequence错误
- memmove 对同一个指针不操作
- PLSQL导出表结构
- 前端PHP入门-017-系统内置函数-会查阅API
- java工具jar包—Lombok
- DP问题如何确定状态
- [总结]Perl在遇到Unicode字符文件名时的各种处理方法
- android studio的弹出层
- linux-统计文件中相同行的数量
- ViewPager+Fragment基本使用方法(附源码)
- Linux下Java、Maven、Tomcat的安装