Compilare: user.cpp: In function ‘int main()’: user.cpp:15:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans[c][1]=max(ans[c][1],1); ^ user.cpp:15:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans[c][1]=max(ans[c][1],1); ^ user.cpp:18:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans[c][0]=max(ans[c][0],ans[cr][1]+1); ^ user.cpp:18:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans[c][0]=max(ans[c][0],ans[cr][1]+1); ^ user.cpp:20:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans[c][1]=max(ans[c][1],ans[cr][0]+1); ^ user.cpp:20:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] ans[c][1]=max(ans[c][1],ans[cr][0]+1); ^