Compilare: user.cpp: In function ‘void calc()’: user.cpp:29:29: warning: variable ‘lim2’ set but not used [-Wunused-but-set-variable] int i,lim=fin.size(),niv=0,lim2; ^ user.cpp: In function ‘int main()’: user.cpp:88:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<fin.size();i++) ^ user.cpp:53:8: warning: variable ‘lim’ set but not used [-Wunused-but-set-variable] int i,lim; ^ /tmp/ccx0kVNi.o: In function `main': user.cpp:(.text.startup+0x36): warning: the `gets' function is dangerous and should not be used.