Compilare: user.cpp: In function ‘void Suma(int*, int*, int)’: user.cpp:28:33: warning: variable ‘start_pos’ set but not used [-Wunused-but-set-variable] int cLetter[15] , nrcom = 0 , start_pos ; ^ user.cpp: In function ‘int main()’: user.cpp:6:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define get_max(a,b) ((a)>(b)?(a):(b)) ^ user.cpp:72:11: note: in expansion of macro ‘get_max’ Answer=get_max(Answer,S1.size()) , S1.pop(); ^