Computer Systems: A Programmer's Perspective (3rd Edition)
3rd Edition
ISBN: 9780134092669
Author: Bryant, Randal E. Bryant, David R. O'Hallaron, David R., Randal E.; O'Hallaron, Bryant/O'hallaron
Publisher: PEARSON
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Chapter 5, Problem 5.17HW
Program Plan Intro
Given C Code:
void* basic_memset(void *s, int c, size_t n)
{
size_t cnt = 0;
unsigned char *schar = s;
while (cnt < n)
{
*schar++ = (unsigned char) c;
cnt++;
}
return s;
}
Cycles per element (CPE):
- The CPE denotes performance of program that helps in improving code.
- It helps to understand detailed level loop performance for an iterative program.
- It is appropriate for programs that use a repetitive computation.
- The processor’s activity sequencing is controlled by a clock that provides regular signal of some frequency.
Loop unrolling:
- It denotes a program transformation that would reduce count of iterations for a loop.
- It increases count of elements computed in each iteration.
- It reduces number of operations that is not dependent to program directly.
- It reduces count of operations in critical paths of overall computations.
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IN C++
You have given an array aa of length n and an
integer x to a brand new robot. What the robot
does is the following: it iterates over the
elements of the array, let the current element be
q. If q is divisible by x, the robot adds x copies of
the integer q/x to the end of the array, and
moves on to the next element. Note that the
newly added elements could be processed by
the robot later. Otherwise, if q is not divisible by
x, the robot shuts down.
Please determine the sum of all values of the
array at the end of the process.
Input
The first input line contains a single integer tt
(lâ%oatâ%o¤100) â€" the number of test cases.
The first line of each test case contains two
integers n and x (1â%o¤nâ%o010^5, 2â%oaxâ%o
¤10^9) â€" the length of the array and the value
which is used by the robot.
The next line contains integers al, a2, .., an
(lâ%o¤aiâ%o¤1O^9) â€" the initial values in the
array.
It is guaranteed that the sum of valuesn over all
test cases does not exceed 10^5
Output
For…
Write only the function definition:
Implement the following function definition:
int CrazyWord(char word [ ]);
//input: a character array with a null character (string)
//sets all of the characters in the word to lowercase letters
//changes any lowercase ‘o’ letters to hashtags ‘#’
//returns the number of hashtags that are now in the word
Implement the following scenario using C++.
Ibri City Polyclinic wishes to maintain their doctor details such as doctor id, name, and their specialization (Example: General / Pediatrician / El Specialist / Artho / Neurologist) in an array. Kindly help
the hospital authorities to read the doctor details in an ascending order based on doctor id, store it in an array and search any given doctor id in the array using binary search. If the searched doctor id
is found, then display only doctor name and their specialization otherwise display ' This doctor is not working in our hospital '.
Note:
1. Use your name as the name of the structure.
2. Maximum number of account holders 25o
Chapter 5 Solutions
Computer Systems: A Programmer's Perspective (3rd Edition)
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