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1218:THE DRUNK JAILER

题目描述
A certain prison contains a long hall of n cells, each right next to each other. Each cell has a prisoner in it, and each cell is locked.
One night, the jailer gets bored and decides to play a game. For round 1 of the game, he takes a drink of whiskey,and then runs down the hall unlocking each cell. For round 2, he takes a drink of whiskey, and then runs down the
hall locking every other cell (cells 2, 4, 6, ?). For round 3, he takes a drink of whiskey, and then runs down the hall. He visits every third cell (cells 3, 6, 9, ?). If the cell is locked, he unlocks it; if it is unlocked, he locks it. He
repeats this for n rounds, takes a final drink, and passes out.
Some number of prisoners, possibly zero, realizes that their cells are unlocked and the jailer is incapacitated. They immediately escape.
Given the number of cells, determine how many prisoners escape jail.
输入解释
The first line of input contains a single positive integer. This is the number of lines that follow. Each of the following lines contains a single integer between 5 and 100, inclusive, which is the number of cells n.
输出解释
For each line, you must print out the number of prisoners that escape when the prison has n cells.
输入样例
2
5
100
输出样例
2
10

该题目是Virtual Judge题目,来自 北京大学POJ

题目来源 Greater New York 2002

源链接: POJ-1218

最后修改于 2020-10-29T05:58:00+00:00 由爬虫自动更新

共提交 0

通过率 --%
时间上限 内存上限
1000 10000