Compilare: user.cpp: In function ‘void bellman_ford()’: user.cpp:47:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (cost[vec.x][vec.y] > cost[P.x][P.y] + A[vec.x][vec.y] && in_matrice(vec)) { ^ user.cpp:47:34: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (cost[vec.x][vec.y] > cost[P.x][P.y] + A[vec.x][vec.y] && in_matrice(vec)) { ^ user.cpp:47:46: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (cost[vec.x][vec.y] > cost[P.x][P.y] + A[vec.x][vec.y] && in_matrice(vec)) { ^ user.cpp:47:51: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (cost[vec.x][vec.y] > cost[P.x][P.y] + A[vec.x][vec.y] && in_matrice(vec)) { ^ user.cpp:47:62: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (cost[vec.x][vec.y] > cost[P.x][P.y] + A[vec.x][vec.y] && in_matrice(vec)) { ^ user.cpp:47:69: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (cost[vec.x][vec.y] > cost[P.x][P.y] + A[vec.x][vec.y] && in_matrice(vec)) { ^ user.cpp:48:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] cost[vec.x][vec.y] = cost[P.x][P.y] + A[vec.x][vec.y]; ^ user.cpp:48:34: warning: array subscript has type ‘char’ [-Wchar-subscripts] cost[vec.x][vec.y] = cost[P.x][P.y] + A[vec.x][vec.y]; ^ user.cpp:48:46: warning: array subscript has type ‘char’ [-Wchar-subscripts] cost[vec.x][vec.y] = cost[P.x][P.y] + A[vec.x][vec.y]; ^ user.cpp:48:51: warning: array subscript has type ‘char’ [-Wchar-subscripts] cost[vec.x][vec.y] = cost[P.x][P.y] + A[vec.x][vec.y]; ^ user.cpp:48:62: warning: array subscript has type ‘char’ [-Wchar-subscripts] cost[vec.x][vec.y] = cost[P.x][P.y] + A[vec.x][vec.y]; ^ user.cpp:48:69: warning: array subscript has type ‘char’ [-Wchar-subscripts] cost[vec.x][vec.y] = cost[P.x][P.y] + A[vec.x][vec.y]; ^