版本2和3间的区别
于2006-04-21 21:04:20修订的的版本2
大小: 970
编辑: czk
备注:
于2008-02-23 15:35:51修订的的版本3
大小: 970
编辑: localhost
备注: converted to 1.6 markup
未发现区别!

Tick and Tick

Time limit: 1 Seconds

Memory limit: 32768K

The three hands of the clock are rotating every second and meeting each other many times everyday. Finally, they get bored of this and each of them would like to stay away from the other two. A hand is happy if it is at least D degrees from any of the rest. You are to calculate how much time in a day that all the hands are happy.

1. Input

The input contains many test cases. Each of them has a single line with a real number D between 0 and 120, inclusively. The input is terminated with a D of -1.

2. Output

For each D, print in a single line the percentage of time in a day that all of the hands are happy, accurate up to 3 decimal places.

3. Sample Input

zju2106 (2008-02-23 15:35:51由localhost编辑)

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