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Doira yuzi

Authors

๐Ÿ“ Vazifa tavsifi

Doira radiusi berilgan. Doira yuzini toping.

Misol:

Input: R=5
Output: 78.5

Doira yuzi

Oson6 daqiqa10 ball

๐Ÿ“š Misollar

Kiruvchi: R=5
Chiquvchi: 78.5
Kiruvchi: R=10
Chiquvchi: 314.0
func yuzi(_ R: Int) -> Double { // Kodingizni shu yerga yozing }

Run tugmasini bosing