View Compilation Error

0_0_17398273_28689.cpp:1:6: error: 'ArtificialIntelligence' has not been declared
 void ArtificialIntelligence::GenerateCandidate(vector< point >& candicate) {
      ^
0_0_17398273_28689.cpp:1:48: error: variable or field 'GenerateCandidate' declared void
 void ArtificialIntelligence::GenerateCandidate(vector< point >& candicate) {
                                                ^
0_0_17398273_28689.cpp:1:48: error: 'vector' was not declared in this scope
0_0_17398273_28689.cpp:1:56: error: 'point' was not declared in this scope
 void ArtificialIntelligence::GenerateCandidate(vector< point >& candicate) {
                                                        ^
0_0_17398273_28689.cpp:1:65: error: 'candicate' was not declared in this scope
 void ArtificialIntelligence::GenerateCandidate(vector< point >& candicate) {
                                                                 ^