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1914: 正方形面积
Memory Limit:128 MB
Time Limit:1.000 S
Judge Style:Text Compare
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Submit:87
Solved:52
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Description
输入边长,输出正方形的面积(保留2位小数)
Input
一个数a (1<=a<=10000)
Output
一个数s (保留2位小数)
Sample Input
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4
Sample Output
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16.00
Source/Category
第一章
入门题-数学问题