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2556：Simple Desk Calculator

题目描述
Your task are to write a program that imitates a simple desk calculator. Your calculator must be able to accept an infix expression which at least includes (, ), +, -, *, /,% . If the expression is legal, output its value, else ouput an error message.
输入解释
There are several test cases, each occupies one line that contains an infix expression. Proceed until the end of the file.
输出解释
For each test case, in one line the value of that expression ( accurate up to two decimal places), or an error message “ERROR IN INFIX NOTATION”.
输入样例 
4.99+5.99+6.99*1.06
(3*5*(4*8)%2)
1+2(
2/0
2.5%2
2%2.5
输出样例 
18.39
0.00
ERROR IN INFIX NOTATION
ERROR IN INFIX NOTATION
ERROR IN INFIX NOTATION
ERROR IN INFIX NOTATION
来自杭电HDUOJ的附加信息
Author hjr
Recommend lcy
该题目是Virtual Judge题目，来自 杭电HDUOJ
题目来源 2008 HZNU Programming Contest
源链接： HDU-2556
最后修改于 2020-10-25T22:54:36+00:00 由爬虫自动更新
共提交 0 次
通过率 --%
时间上限 内存上限
2000/1000MS(Java/Others) 32768/32768K(Java/Others)