Solutions of Circle

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Solutions of Circle - MarisaOJ: Marisa Online Judge

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orz_qbl Created at 1 likes

We can define pi as 3.14. Radius: r. Perimeter Formula: 2 * pi * r. Area formula: pi * r * r. Example Code (C++)

c p p # \in c l u d e < b i t \frac{s}{s} t d c + + . h > # d e f \in e π 3.14 d o u b \leq r; u \sin g n a m e s p a c e s t d; \int m a \in () {c \in 〉 r; c o u t 〈 f i x e d 〈 s e t ≺ i s i o n (3) 〈 2 \cdot π \cdot r 〈 〈 π \cdot r \cdot r 〈 e n d l; r e t u r n 0;}

$cpp #include <bits/stdc++.h> #define pi 3.14 double r; using namespace std; int main(){ cin >> r; cout << fixed << setprecision(3) << 2*pi*r << " " << pi*r*r << endl; return 0; }$