Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:10: error: ‘strlen’ was not declared in this scope user.cpp:12: error: ‘s’ was not declared in this scope user.cpp:12: error: ‘j’ was not declared in this scope user.cpp:13: error: expected ‘)’ before ‘{’ token user.cpp:17: error: expected primary-expression before ‘}’ token user.cpp:17: error: expected ‘;’ before ‘}’ token user.cpp:8: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result user.cpp:9: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result