Runtime Error
/in/foo.cc: In function 'int main()': /in/foo.cc:27:20: warning: format '%d' expects argument of type 'int', but argument 2 has type 'node' [-Wformat=] printf("%d ",a[i]); ^
/in/foo.cc: In function 'int main()': /in/foo.cc:27:20: warning: format '%d' expects argument of type 'int', but argument 2 has type 'node' [-Wformat=] printf("%d ",a[i]); ^