View Compilation Error

0_0_21736570_18868.cpp:65:29: error: conflicting declaration 'trie2::nod trie2::a [3000030]'
 trie2::nod trie2::a[maxn * 6];
                             ^
0_0_21736570_18868.cpp:12:13: note: previous declaration as 'trie2::nod trie2::a [4000040]'
  static nod a[maxn * 8];
             ^
0_0_21736570_18868.cpp:65:29: error: declaration of 'trie2::nod trie2::a [4000040]' outside of class is not definition [-fpermissive]
 trie2::nod trie2::a[maxn * 6];
                             ^