Compilare: main.cpp: In function 'int main()': main.cpp:41:37: warning: array subscript has type 'char' [-Wchar-subscripts] per.y=q[x-1].y+dy[card[c]]; ^ main.cpp:42:37: warning: array subscript has type 'char' [-Wchar-subscripts] per.x=q[x-1].x+dx[card[c]]; ^ main.cpp:30:15: warning: unused variable 'v' [-Wunused-variable] int n,v,x,i,j; ^