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void UpDate(Node *p, int x, int y, int L, int R, w)
{
  if (y < L || R < x) return;
  if (x <= L && R <= y)
  {
     p -> Delta += w;
     return;
  }
  if (p -> Left == null) p -> Left = new Node(0, 0, NULL, NULL);
  if (p -> Right == null) p -> Right = new Node(0, 0, NULL, NULL);
  p -> Left -> Delta += p -> Delta;
  p -> Right -> Delta += p -> Delta;
  p -> Delta = 0;
  int m = (x + y) >> 1;
  UpDate(p -> Left, x, m, L, R, w);
  UpDate(p -> Right, m + 1, y, L, R, w);
  p -> Sum = p -> Left -> Sum + (m - x + 1)*p -> Left -> Delta + p -> Right -> Sum + (y - m )*p -> Right -> Delta;  
}

prog.cpp:1:13: error: variable or field 'UpDate' declared void
 void UpDate(Node *p, int x, int y, int L, int R, w)
             ^
prog.cpp:1:13: error: 'Node' was not declared in this scope
prog.cpp:1:19: error: 'p' was not declared in this scope
 void UpDate(Node *p, int x, int y, int L, int R, w)
                   ^
prog.cpp:1:22: error: expected primary-expression before 'int'
 void UpDate(Node *p, int x, int y, int L, int R, w)
                      ^
prog.cpp:1:29: error: expected primary-expression before 'int'
 void UpDate(Node *p, int x, int y, int L, int R, w)
                             ^
prog.cpp:1:36: error: expected primary-expression before 'int'
 void UpDate(Node *p, int x, int y, int L, int R, w)
                                    ^
prog.cpp:1:43: error: expected primary-expression before 'int'
 void UpDate(Node *p, int x, int y, int L, int R, w)
                                           ^
prog.cpp:1:50: error: 'w' was not declared in this scope
 void UpDate(Node *p, int x, int y, int L, int R, w)
                                                  ^

Standard output is empty