kinder.cpp:9: error: ISO C++ forbids declaration of 'unordered_map' with no type kinder.cpp:9: error: expected ';' before '<' token kinder.cpp: In member function 'void SegmentedTree::FenwickTree::Update(const int&, const int&)': kinder.cpp:13: error: invalid use of nonstatic data member 'SegmentedTree::tree' kinder.cpp: In member function 'int SegmentedTree::FenwickTree::Query(const int&) const': kinder.cpp:20: error: invalid use of nonstatic data member 'SegmentedTree::tree' kinder.cpp:21: error: invalid use of nonstatic data member 'SegmentedTree::tree' kinder.cpp: In member function 'int SegmentedTree::FenwickTree::GetValue(int) const': kinder.cpp:29: error: invalid use of nonstatic data member 'SegmentedTree::tree' kinder.cpp:30: error: invalid use of nonstatic data member 'SegmentedTree::tree' kinder.cpp:36: error: invalid use of nonstatic data member 'SegmentedTree::tree' kinder.cpp:37: error: invalid use of nonstatic data member 'SegmentedTree::tree'