View Compilation Error

0_0_27967667_23162.cpp:7:8: error: 'len' does not name a type
     ll len;
        ^
0_0_27967667_23162.cpp:6:33: error: 'node::node' has the same name as the class in which it is declared
 #define ll long long int struct node {
                                 ^
0_0_27967667_23162.cpp:8:5: note: in expansion of macro 'll'
     ll w;
     ^
0_0_27967667_23162.cpp:9:8: error: two or more data types in declaration of 'a'
 }a[4005];
        ^
0_0_27967667_23162.cpp:6:33: error: 'node::node' has the same name as the class in which it is declared
 #define ll long long int struct node {
                                 ^
0_0_27967667_23162.cpp:10:1: note: in expansion of macro 'll'
 ll dp[4005][3];
 ^
0_0_27967667_23162.cpp:57:1: error: expected unqualified-id at end of input
 }
 ^
0_0_27967667_23162.cpp:57:1: error: expected '}' at end of input
0_0_27967667_23162.cpp:57:1: error: expected unqualified-id at end of input