Eroare de compilare: user.cpp:1:21: error: iostream.h: No such file or directory user.cpp: In function ‘int main()’: user.cpp:26: error: ‘cin’ was not declared in this scope user.cpp:31: error: expected ‘;’ before ‘if’ user.cpp:36: warning: statement has no effect user.cpp:64: error: ‘cout’ was not declared in this scope user.cpp:24: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:25: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result