Description: Two-way game of life and death of Joseph in Joseph living and the dead on the basis of the game, forward reverse count after count, then a positive count. Specifically described as follows: 30 visitors with a boat ride, because of severe overload, combined with wind, big waves, dangerous extreme so the captain told the passengers, and only half of the whole ship into the sea of tourists, the rest can be survived. Helpless, we can only agree with this approach, and 30 people agreed to form a circle, starting from the first individual, report the number of clockwise turn, the number to 9, put him into the sea, and then the next number from the beginning of his , counter-clockwise to the number 5, will he put the sea, then the number of his next anti-clockwise, the clockwise to the number 9, then he put into the sea, and so on, until the remaining 15 passengers so far. Q. What position is the position of the sea will be dropped.
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shengsiyouxi.cpp
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