Compilare: user.c: In function ‘main’: user.c:113:8: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &numR); ^ user.c:116:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d %d %d", ^ user.c:134:14: warning: ‘BBox.x1’ may be used uninitialized in this function [-Wmaybe-uninitialized] W = BBox.x1 - BBox.x0; ^ user.c:135:14: warning: ‘BBox.y1’ may be used uninitialized in this function [-Wmaybe-uninitialized] H = BBox.y1 - BBox.y0; ^ user.c:134:14: warning: ‘BBox.x0’ may be used uninitialized in this function [-Wmaybe-uninitialized] W = BBox.x1 - BBox.x0; ^ user.c:135:14: warning: ‘BBox.y0’ may be used uninitialized in this function [-Wmaybe-uninitialized] H = BBox.y1 - BBox.y0; ^