2 University of Electronic Science Technology of China(UESTC) ☐Case4 int static variable=5; void f register int i1,i2,i3,i4,i5,i6,i7,i8,i9,i10; register char *c1,*c2,*c3,*c4,*c5, *c6*c7,*c8*c9,*c10 extern inta very long_name; double dbl Real-Time Systems Lab LIAO Yong2 Real-Time Systems Lab LIAO Yong University of Electronic Science & Technology of China (UESTC)  Case 4 int static_variable=5; void f() { register int i1,i2,i3,i4,i5,i6,i7,i8,i9,i10; register char *c1, *c2, *c3, *c4, *c5, *c6, *c7, *c8, *c9, *c10, extern inta_very_long_name; double dbl;