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这个题设有没有问题?

Posted by SummerTown at 2009-05-31 21:21:52 on Problem 1061
题目中有一个条件是这么说的
“其中x≠y < 2000000000”
没有严格限定x,y的范围,假如x或者y是个很“大”的负数,。。。。
又或者这样的两组数据
10 20 1 2 10
10 20 1 1 10
大家会得到什么结果呢?
对于第一组,应该是
0
而第二组,不应该是
Impossible
而应该也是
0
因为两种情况两个青蛙就是相遇的,你们的意见呢??

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