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这题让人想吐

Posted by smallbox at 2009-04-11 23:44:50 on Problem 2074
自己的程序永远都不知道错在哪?
找了个AC的程序测数据,却发现这个程序更本不对,但是偏偏能AC.
测来测去发现
-10 10 20
-20 30 0
2
3 4 11
4 9 13
ans:14.44

-10 10 20
-20 30 0
1
4 9 13
ans:12.86
这是AC程序的答案,于是我吐了....

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