Compilare: user.cpp: In function ‘int main()’: user.cpp:14:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] scanf("%d ",&lc[ch]); ^ user.cpp:24:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] tot+=lc[text[0]]; ^ user.cpp:31:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] tot+=lc[text[i]]; ^ user.cpp:43:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] tot+=lc[text[i]]; ^ /tmp/cc9xWffX.o: In function `main': user.cpp:(.text.startup+0x70): warning: the `gets' function is dangerous and should not be used.