Consider the Following Expression Grammar

question 22

Multiple Choice

Consider the following expression grammar. The seman-tic rules for expressioncalculation are stated next to each grammar production.
E ? number E.val = number. val
| E '+' E E(1) .val = E(2) .val + E(3) .val
| E '×' E E(1) .val = E(2) .val × E(3) .val
The above grammar and the semantic rules are fed to a yacc tool (which is an LALR (1) parser generator) for parsing and evaluating arithmetic expressions. Which one of thefollowing is true about the action of yacc for the given grammar?

• A)It detects recursion and eliminates recursion
• B)It detects reduce-reduce conflict, and resolves
• C)It detects shift-reduce conflict, and resolves the conflict in favor of a shift over a reduce action
• D)It detects shift-reduce conflict, and resolves the conflict in favor of a reduce over a shift action

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Definitions:

WACC

Weighted Average Cost of Capital is a calculation of a firm's cost of capital in which each category of capital is proportionately weighted.

Payback Method

Payback Method is a capital budgeting technique that calculates the time required for an investment to generate cash flows sufficient to recover the initial investment cost.

Investments

Assets or items acquired with the intention of generating income or appreciation over time, including stocks, bonds, real estate, or other vehicles.

Liquidity

The simplicity of turning an asset into cash without impacting its market value.