HardDisk Drive

Question

Problem Description
　　Yesterday your dearcousin Coach Pang gave you a new 100MB hard disk drive (HDD) as a gift becauseyou will get married next year.
　　But you turned on yourcomputer and the operating system (OS) told you the HDD is about 95MB. The 5MBof space is missing. It is known that the HDD manufacturers have a differentcapacity measurement. The manufacturers think 1 “kilo” is 1000 but the OSthinks that is 1024. There are several descriptions of the size of an HDD. Theyare byte, kilobyte, megabyte, gigabyte, terabyte, petabyte, exabyte, zetabyteand yottabyte. Each one equals a “kilo” of the previous one. For example 1gigabyte is 1 “kilo” megabytes.
　　Now you know the size ofa hard disk represented by manufacturers and you want to calculate thepercentage of the “missing part”.
Input
　　The first line containsan integer T, which indicates the number of test cases.
　　For each test case,there is one line contains a string in format “number[unit]” where number is apositive integer within [1, 1000] and unit is the description of size whichcould be “B”, “KB”, “MB”, “GB”, “TB”, “PB”, “EB”, “ZB”, “YB” in shortrespectively.
Output
　　For each test case,output one line “Case #x: y”, where x is the case number (starting from 1) andy is the percentage of the “missing part”. The answer should be rounded to twodigits after the decimal point.
Sample Input
2
100[MB]
1[B]
Sample Output
Case #1: 4.63%
Case #2: 0.00%

Answer 1

http://blog.csdn.net/lttree/article/details/16869339