Time limit 2000/4000/4000/4000 ms. Memory limit 65000/65000/65000/65000 Kb.
The area of a circle
Question:
Find the area of the circle with radius taken as an input from keyboard. The input can be a float number also the result should be a float number.
Input specification:
One input : radius of the circle.
Output specification:
Show the area of the circle.
Tips:
Π is 3.14, Area = Πr2
| Sample Input |
Sample Output |
3
15
|
28.26
706.5
|
Для отправки решений необходимо выполнить вход.
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