/in/foo.cc: In function 'int main()':
/in/foo.cc:32:22: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long long int' [-Wformat=]
   printf("%d ",a[i],i);
                      ^
/in/foo.cc:32:22: warning: too many arguments for format [-Wformat-extra-args]