Compilare: user.cpp: In member function ‘std::vector<point> circle::intersect(circle)’: user.cpp:67:17: warning: unused variable ‘p’ [-Wunused-variable] long double p, h, a, area, d; ^ user.cpp:67:26: warning: unused variable ‘area’ [-Wunused-variable] long double p, h, a, area, d; ^ user.cpp: In function ‘int main()’: user.cpp:133:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cerc.in", "r", stdin); ^ user.cpp:134:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cerc.out", "w", stdout); ^