Compilare: user.cpp: In function ‘int main()’: user.cpp:16:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] ap[A[i]]++; ^ user.cpp:18:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] ap[B[i]]--; ^ user.cpp:33:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] cr[B[i]]=pr[cr[B[i]]+1][B[i]-'a']; ^ user.cpp:33:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] cr[B[i]]=pr[cr[B[i]]+1][B[i]-'a']; ^ user.cpp:34:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] dr[cr[B[i]]]=i; ^ /tmp/ccT1mxBG.o: In function `main': user.cpp:(.text.startup+0x4e): warning: the `gets' function is dangerous and should not be used.