prog.c: In function ‘main’:
prog.c:5:8: error: ‘y’ undeclared (first use in this function)
int x=y=z=3,i;
^
prog.c:5:8: note: each undeclared identifier is reported only once for each function it appears in
prog.c:5:10: error: ‘z’ undeclared (first use in this function)
int x=y=z=3,i;
^