View Compilation Error

0_0_16212079_14366.cpp:1:2: error: 'deque' does not name a type
  deque<int> q;
  ^
0_0_16212079_14366.cpp:2:9: error: 'q' does not name a type
         q.clear();
         ^
0_0_16212079_14366.cpp:3:3: error: expected unqualified-id before 'while'
   while(!q.empty() && sum[j-1]<sum[q.back()])
   ^
0_0_16212079_14366.cpp:5:3: error: expected unqualified-id before 'while'
   while(!q.empty() && q.front()<(j-K))
   ^
0_0_16212079_14366.cpp:7:9: error: 'q' does not name a type
         q.push_back(j-1);
         ^