Compilare: user.cpp: In function ‘void bf(int, int, int (*)[1001][4])’: user.cpp:63:53: warning: unused variable ‘actdir’ [-Wunused-variable] int actx = sol[ i ][ 0 ], acty = sol[ i ][ 1 ], actdir = sol3[ i ], actcost = sol4[ i ]; ^ user.cpp: In function ‘int main()’: user.cpp:104:20: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[2024]’ [-Wformat=] scanf("%s", &sir ); ^