View Compilation Error

0_0_16655295_6177.cpp:14:2: error: 'ElemType' does not name a type
  ElemType *elem;
  ^
0_0_16655295_6177.cpp:18:1: error: 'Status' does not name a type
 Status InitList_Sq(SqList &L)
 ^
0_0_16655295_6177.cpp:27:1: error: 'Status' does not name a type
 Status ListInsert_Sq(SqList &L,int i,ElemType e)
 ^
0_0_16655295_6177.cpp:45:1: error: 'Status' does not name a type
 Status ListDelete_Sq(SqList &L,int i,ElemType &e)
 ^
0_0_16655295_6177.cpp:58:19: error: 'SqList' was not declared in this scope
 int LocateElem_Sq(SqList L,ElemType e)
                   ^
0_0_16655295_6177.cpp:58:28: error: 'ElemType' was not declared in this scope
 int LocateElem_Sq(SqList L,ElemType e)
                            ^
0_0_16655295_6177.cpp:58:38: error: expression list treated as compound expression in initializer [-fpermissive]
 int LocateElem_Sq(SqList L,ElemType e)
                                      ^
0_0_16655295_6177.cpp:59:1: error: expected ',' or ';' before '{' token
 {
 ^