View Compilation Error

0_0_19990089_28335.cpp:13:2: error: expected initializer before 'int'
  int T,n; 
  ^
0_0_19990089_28335.cpp:14:7: error: expected constructor, destructor, or type conversion before '(' token
  scanf("%d",&T);
       ^
0_0_19990089_28335.cpp:15:2: error: expected unqualified-id before 'while'
  while(T--&&scanf("%d",&n)!=1)
  ^