Binary trees are fine tools for representing and evaluating algebraic expressions involving binary
operators. An algebraic expression containing operands and binary operators can be represented
by a binary expression tree.
Expression tree is constructed by storing the operator at the nodes (vertices) of the tree. The
first operand is represented on the left sub-tree and the second operand on the right sub-tree.
A vertex representing an operand is a leaf and a vertex representing an operator is a non-leaf.
Operators are placed following their precedence rule, that is, operators with higher ...
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