Compilare: user.cpp: In function ‘void aranjeaza(int, std::string)’: user.cpp:51:9: warning: value computed is not used [-Wunused-value] cout<"b"; ^ user.cpp: In function ‘int rezolva()’: user.cpp:110:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (; a<s.length();) ^ user.cpp:124:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:131:9: warning: unused variable ‘i’ [-Wunused-variable] int i; ^