Compilare: user.cpp: In function ‘int main()’: user.cpp:72:12: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] fin >> op + 1; ^ user.cpp:99:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] startX += dx[op[1]]; ^ user.cpp:100:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] startY += dy[op[1]]; ^