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- #include <iostream>
- using namespace std;
- class Krug {
- private:
- int r;
- const float pi=3.14;
- public:
- Krug(int rad) {
- r = rad;
- }
- Krug (){}
- float perimetar() {
- return 2*r*pi;
- }
- float plostina() {
- return r*r*pi;
- }
- int ednakvi() {
- int equal=0;
- if (perimetar()==plostina())
- equal=1;
- return equal;
- }
- };
- int main() {
- float r;
- cin>>r;
- Krug k(r);
- cout << k.perimetar() << endl;
- cout << k.plostina() << endl;
- cout << k.ednakvi() << endl;
- //instanciraj objekt od klasata Krug cij radius e vrednosta procitana od tastatura
- //instanciraj objekt od klasata Krug cij radius ne e definiran
- return 0;
- }
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