Compilare: user.cpp: In function ‘int main()’: user.cpp:79:12: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] fin >> op + 1; ^ user.cpp:106:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] startX += dx[op[1]]; ^ user.cpp:107:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] startY += dy[op[1]]; ^ user.cpp:128:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] line += dx[op[step]]; ^ user.cpp:129:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] col += dy[op[step]]; ^ user.cpp:141:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] line += dx[op[step + 1]] - dx[op[step]]; ^ user.cpp:141:41: warning: array subscript has type ‘char’ [-Wchar-subscripts] line += dx[op[step + 1]] - dx[op[step]]; ^ user.cpp:142:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] col += dy[op[step + 1]] - dy[op[step]]; ^ user.cpp:142:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] col += dy[op[step + 1]] - dy[op[step]]; ^