1 #include <stdio.h> 2 3 int global_var = 10; 4 5 int main()6main() 7 { 8 printf("Set a breakpoint here: %d.\n", global_var); 9 global_var = 20; 10 printf("We should have stopped on the previous line: %d.\n", global_var); 11 global_var = 30; 12 return 0; 13 } 14