Compilare: user.cpp: In function ‘void lee()’: user.cpp:37:37: warning: array subscript has type ‘char’ [-Wchar-subscripts] q.push({y0, x0, convert[dir_init]}); ^ user.cpp:39:34: warning: array subscript has type ‘char’ [-Wchar-subscripts] cost[y0][x0][convert[dir_init]] = 0; ^ user.cpp:54:64: warning: array subscript has type ‘char’ [-Wchar-subscripts] add = distanta(nou.dir, convert[mdir [nou.y][nou.x]], cost[pres.y][pres.x][pres.dir]) + 1; ^