Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:40: error: ‘strlen’ was not declared in this scope user.cpp:63: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:81: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:98: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:116: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:156: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:175: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:189: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:207: warning: suggest explicit braces to avoid ambiguous ‘else’