1 #include <stdio.h> 2 3 int main()4 main() { 5 _Bool b = 1; 6 printf("%d\n", b); 7 ++b; 8 printf("%d\n", b); 9 --b; 10 printf("%d\n", b); 11 --b; 12 printf("%d\n", b); 13 --b; 14 printf("%d\n", b); 15 b = "hello"; 16 printf("%d\n", b); 17 } 18