Description: Subject content and requirements: n ants on slender 100 cm long straight pole. Some of them head to the left, some to the right.
Each ant can only crawl along the pole forward speed is 1 cm/sec.
When two ants meet, they will turn in the opposite direction while crawling.
These ants, ants have a cold. And when the other ants meet, the cold will spread to encounter ants.
Please work, when all the ants are crawling off the pole time, how many ants got sick.
[Data format]
The first line of input an integer n (1 <n <50), represents the total number of ants.
The next line is the n space-separated integers Xi (-100 <Xi <100), the absolute value of Xi, expressed ants leave the pole to the left endpoint. A positive value indicates the head to the right, a negative value indicates the head to the left, the data does not appear in a va
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........\1.c
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........\C实践教程2013.doc
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