Compilare: user.cpp: In function ‘int main()’: user.cpp:22:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (s[i].size()>mx){ ^ user.cpp:29:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0 ; j < s[i].size() ; j ++) ^ user.cpp:14:9: warning: unused variable ‘p’ [-Wunused-variable] int p,n,mx=-1,clc,mr,x=0; ^ user.cpp:14:23: warning: unused variable ‘mr’ [-Wunused-variable] int p,n,mx=-1,clc,mr,x=0; ^ user.cpp:14:26: warning: variable ‘x’ set but not used [-Wunused-but-set-variable] int p,n,mx=-1,clc,mr,x=0; ^