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hdu1006,这个题一点思路都没有,求一个大神能给点指点,越详细越好

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悬赏园豆:15 [待解决问题]
Problem Description
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.
 

 

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.
 

 

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.
左岸繁华右岸殇的主页 左岸繁华右岸殇 | 初学一级 | 园豆:156
提问于:2016-03-29 19:35
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