View Compilation Error

0_0_20005999_20101.cpp: In function 'int main()':
0_0_20005999_20101.cpp:6:2: error: expected unqualified-id before 'double'
  double temp;
  ^
0_0_20005999_20101.cpp:17:12: error: 'temp' was not declared in this scope
       a[j]=temp;
            ^