Eroare de compilare: user.cpp:2:15: error: math: No such file or directory user.cpp:30:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:7: error: 'ifstream' was not declared in this scope user.cpp:7: error: expected `;' before 'fin' user.cpp:8: error: 'ofstream' was not declared in this scope user.cpp:8: error: expected `;' before 'fout' user.cpp:9: error: 'fin' was not declared in this scope user.cpp:14: error: 'sqrt' was not declared in this scope user.cpp:27: error: 'fout' was not declared in this scope