problem link: http://www.spoj.com/problems/FOXLINGS/en/

AC code: https://ideone.com/eLzUiU WA code: https://ideone.com/Z7d6qy

In my WA code i declared- ll node, edge, par[300005]; Same code I declared like- ll par[300005], node, edge; and got AC...

I can't figure out what's the difference between these two declaration..help please.