Compilare: user.cpp: In function ‘bool subsir(int, int)’: user.cpp:15:14: warning: variable ‘c1’ set but not used [-Wunused-but-set-variable] int k, l,c1,v; ^ user.cpp:15:17: warning: variable ‘v’ set but not used [-Wunused-but-set-variable] int k, l,c1,v; ^ user.cpp: In function ‘int main()’: user.cpp:49:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (strlen(s[i])>max) ^ user.cpp:54:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (strlen(s[i]) == max) ^