View Compilation Error

0_0_7661336_26707.cpp:62: error: expected unqualified-id before "struct"
0_0_7661336_26707.cpp:62: error: expected `)' before "struct"
0_0_7661336_26707.cpp:62: error: expected `,' or `;' before "struct"
0_0_7661336_26707.cpp: In function `int main()':
0_0_7661336_26707.cpp:100: error: aggregate `max head' has incomplete type and cannot be defined