Concepts Of Programming Languages
12th Edition
ISBN: 9780134997186
Author: Sebesta, Robert W.
Publisher: Pearson,
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Expert Solution & Answer
Chapter 6, Problem 1RQ
Explanation of Solution
Descriptor:
- The descriptor is nothing but collection of the attributes of a variable.
- It is an area of memory which stores the attributes of a variable in an implementation.
- If the attributes are all static, then the descriptors are required only at compile time. These descriptors are built by the compiler, usually as a part of the symbol table, and are used during compilation.
- For dynamic attributes, all of the descriptor must be maintained during execution. Here, the descriptor is used by the run-time system.
- Generally, it is used for type checking and building the code for the allocation and deallocation operations.
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Students have asked these similar questions
2. Consider the following pseudocode for partition:
function partition (A,L,R)
pivotkey = A [R]
t = L
for i
L to R-1 inclusive:
if A[i] A[i]
t = t + 1
end if
end for
A [t] A[R]
return t
end function
Suppose we call partition (A,0,5) on A=[10,1,9,2,8,5]. Show the state of the list at the
indicated instances.
Initial A
After i=0 ends
After 1 ends
After i 2 ends
After i = 3 ends
After i = 4 ends
After final swap
10 19 285
[12 pts]
.NET Interactive
Solving Sudoku using Grover's Algorithm
We will now solve a simple problem using Grover's algorithm, for which we do not necessarily know the solution beforehand. Our problem is a 2x2 binary sudoku, which in our case has two simple rules:
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If we assign each square in our sudoku to a variable like so:
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V V₁
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using r language
Chapter 6 Solutions
Concepts Of Programming Languages
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