Compilare: user.cpp: In function ‘void solve(int (*)[1010][4], int, int)’: user.cpp:38:34: warning: array subscript has type ‘char’ [-Wchar-subscripts] vaz[aux.x][aux.y][aux.dir]=0; ^ user.cpp:43:50: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(d[x][y][i]>d[aux.x][aux.y][aux.dir]+(aux.dir!=i)) ^ user.cpp:45:51: warning: array subscript has type ‘char’ [-Wchar-subscripts] d[x][y][i]=d[aux.x][aux.y][aux.dir]+(aux.dir!=i); ^ user.cpp: In function ‘int main()’: user.cpp:65:32: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘char*’ [-Wformat=] scanf("%d",&v[i][j]); ^ user.cpp:58:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("robot2.in", "r", stdin); ^ user.cpp:59:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("robot2.out", "w", stdout); ^ user.cpp:61:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:65:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i][j]); ^ user.cpp:68:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d",&x1,&y1,&x2,&y2); ^