0101少儿编程
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5448: 【37课】【3221】分数加减表达式的值
Memory Limit:128 MB
Time Limit:1.000 S
Judge Style:Text Compare
Creator:
Submit:29
Solved:22
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Description
Input
输入一个正整数
n
。(
1
≤
n
≤
1000
)。
Output
输出一个实数,为表达式的值,保留到小数点后四位。
Sample Input
Copy
2
Sample Output
Copy
0.5000
Source/Category
一本通编程启蒙
循环结构
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