Compilare: user.c: In function ‘fill’: user.c:15:6: warning: type of ‘x’ defaults to ‘int’ [enabled by default] void fill(x, y, dx, dy) { ^ user.c:15:6: warning: type of ‘y’ defaults to ‘int’ [enabled by default] user.c:15:6: warning: type of ‘dx’ defaults to ‘int’ [enabled by default] user.c:15:6: warning: type of ‘dy’ defaults to ‘int’ [enabled by default] user.c: In function ‘main’: user.c:31:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d", &n, &dm, &k); ^ user.c:37:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &d[i].x, &d[i].y); ^ user.c:42:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &x, &y); ^