While I can't see what purpose it has try this
pesdocode.
procedure COuntSingle (Binary Tree)
1. If Binary Tree Left = null
1.1 If Binary Tree right = null
1.1.1 return 0
ELSE
1.1.2 return 1 + CountChild(binarytree right)
ELSE
1.2 If Binary Tree right = null
1.2.1 return 1 + CountChild(binarytree left)
ELSE
1.1.2 return CountChild(binarytree left) +
CountChild(binarytree right)
Remember KISS - Keep it Simple Stupid. Especially in
If then else statements and recursion.
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