class Triangle{double _side1, _side2, _side3; public:Triangle(double a = 0, double b = 0, double c = 0) : _side1(a), _side2(b), _side3(c) {} }; int main(){int n;std::cin>>n;Triangle a(0, 0, 0);Triangle b(0, 0, 0);Triangle c(0, 0, 0);double s1, s2, s3;switch (n){case 1:a = Triangle();std::cout<<a.getSide(1)<<std::endl;std::cout<<a.getSide(2)<<std::endl;std::cout<<a.getSide(3)<<std::endl;break; }

using namespace std; int count_even_sums_and_sort_list(list& lista){int ile = (int)count_if(lista.begin(), lista.end(), [](int v) {if (v < 0) v = -v; int s = 0; do { s += v % 10; v /= 10; } while (v > 0);return (s % 2) == 0;}); } int main(){std::list lista;int n;while(std::cin>>n)lista.push_back(n); }

using namespace std; std::string replaceLastOccurrence(string tekst, string slowo){string pierwsze = „”;bool firstSet = false; } int main(){string tekst, slowo;getline(cin, tekst);getline(cin, slowo);cout << replaceLastOccurrence(tekst, slowo) << endl;return 0;}