prog.c: In function ‘main’:
prog.c:4:9: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘a’
char pi a;
^
prog.c:4:9: error: ‘a’ undeclared (first use in this function)
prog.c:4:9: note: each undeclared identifier is reported only once for each function it appears in
prog.c:5:14: error: ‘pi’ undeclared (first use in this function)
printf("%d", pi);
^~