Compilare: user.c: In function ‘main’: user.c:24:9: warning: format ‘%d’ expects argument of type ‘int *’, but argument 3 has type ‘char *’ [-Wformat=] fscanf(fi,"%d",&dir[i]); ^ user.c:26:9: warning: array subscript has type ‘char’ [-Wchar-subscripts] a=a+dirx[dir[i]]; ^ user.c:27:9: warning: array subscript has type ‘char’ [-Wchar-subscripts] b=b+diry[dir[i]]; ^ user.c:36:9: warning: array subscript has type ‘char’ [-Wchar-subscripts] a+=dirx[dir[j]]; ^ user.c:37:9: warning: array subscript has type ‘char’ [-Wchar-subscripts] b+=diry[dir[j]]; ^ user.c:16:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d%d%d%d",&x,&y,&n,&l); ^ user.c:24:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d",&dir[i]); ^