How do I create a parse tree  and left most derivationfor this statement?   A = (A + B) * C     → = → A | B | C → + | → * | → ()|

def transitiveclosure(g):     """computes the transitive closure of a graph/relation encoded as as a set of 2-tuples"""   transitiveclosure: This function should accept sets/frozensets of 2-tuples that encode relations, or equivalently, graphs, and should return the least relation that includes the input relation and is transitive: its transitive closure. E.g., an input frozenset({(1,2),(2,3)}) could correctly result in the value frozenset({(1,2),(2,3),(1,3)}).

Question sum Explain clearly the role of B-Trees in implementing inverted index. Focus on the multiple benefits that accrue out of using B-Trees describing each of them in a sentence or two   explain breifly Full explain this question very fast solution sent me step by step

Compilation Techniques Given the following statement: 6 * (8-3) Make the Annotated Parse Tree based on the translation scheme below.

4. а) For the following SDD give annotated parse tree for the expression: i) (8 + 7 * (6 + 5) + 4) * 3 n PRODUCTION SEMANTIC RULES 1) L → E n L.val = E.val 2) E → E + T E.val = E1.val + T.val 3) E → T E.val = T.val 4) T→ T * F T.val = T1.val × F.val 5) T → F T.val = F.val 6) F → ( E ) F.val = E.val 7) F → digit F.val = digit.lexval

Consider the following CFG: Starting variable: S Terminals: (0, 1} Productions: • S-> ABA | SS • A-> S0| T17T O B-> S1 |0 o T->0 What is the shortest string that can be generated by this CFG? Give the derivation tree for this string.

Urgent

using grammar 3.2 do a parse tree  and leftmost derivation for A  = A * (B + (C*A)) <assign> -> <id> = <expr> <expr> -> <id> + <expr> | <id> * <expr> | ( <expr> ) | <id> <id> -> A | B| C

8-Define a scheme procedure that returns the total number of leaves of a tree For example, (count-leaves '((4 5 6) (3) () (1 2) )) returns 6 Then, manually trace the procedure with the given example.

Computer science