View Compilation Error

0_0_35507565_1205.cpp:8:11: error: 'node' was not declared in this scope
 bool cmp1(node a, node b)
           ^
0_0_35507565_1205.cpp:8:19: error: 'node' was not declared in this scope
 bool cmp1(node a, node b)
                   ^
0_0_35507565_1205.cpp:8:25: error: expression list treated as compound expression in initializer [-fpermissive]
 bool cmp1(node a, node b)
                         ^
0_0_35507565_1205.cpp:9:1: error: expected ',' or ';' before '{' token
 {
 ^