Eroare de compilare: user.cpp:2:21: error: fstream.h: No such file or directory user.cpp: In function 'int main()': user.cpp:23: error: 'ifstream' was not declared in this scope user.cpp:23: error: expected `;' before 'f' user.cpp:24: error: 'ofstream' was not declared in this scope user.cpp:24: error: expected `;' before 's' user.cpp:26: error: invalid operands of types 'FILE*' and 'int' to binary 'operator>>' user.cpp:29: error: invalid operands of types 'FILE*' and 'int' to binary 'operator>>' user.cpp:59: error: invalid operands of types 'FILE*' and 'int' to binary 'operator<<' user.cpp:61: error: request for member 'close' in 's', which is of non-class type 'FILE*'