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P1517 高精求小数幂

• 72通过
• 338提交
• 题目提供者 yeszy 管理员
• 评测方式 云端评测
• 标签 数论,数学 高精
• 难度 普及/提高-
• 时空限制 1000ms / 128MB
• 提示：收藏到任务计划后，可在首页查看。

题目描述

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 <= 9999.9) and n is an integer such that 0 < n <= 250.

输入输出格式

输入格式：

The input will consist of a set (less than 11) 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.

输出格式：

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.

输入输出样例

输入样例#1： 复制
95.123  2
0.4321  5
5.1234  7
6.7592  3
98.999  5
1.0100 10

输出样例#1： 复制
9048.385129
.01506334182914325601
92663.3181348508776705891407804544
308.806114738688
9509420210.697891990494999
1.10462212541120451001


说明

各个测试点2s

If you don't know how to determine wheather encounted the end of input:

s is a string and n is an integer

C++ while(cin>>s>>n)

{ ... } c while(scanf("%s%d",s,&n)==2) //to see if the scanf read in as many items as you want

{ ... }

提示
标程仅供做题后或实在无思路时参考。
请自觉、自律地使用该功能并请对自己的学习负责。
如果发现恶意抄袭标程，将按照I类违反进行处理。