
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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How can C++ simply clone a collection of shared pointers into another array? List your options for the scenario. Do shared pointers transfer their managed objects? Explain
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- Question: Can you please help me with answering the following coding question? If you do write code, can it please either be in C or C++? Thank you Problem: Your task is to create the CPU execution scheduler where the jobs are kept in a priority queue implemented as a binary heap. Make this a round robin type of execution where the jobs are deleted from the heap, executed for 2 time units, and re-inserted with a lower priority into the priority queue. Jobs that have completed execution would not be re-inserted into the heap. New jobs could come in at a priority that might be higher than the aging jobs. . For example, the following tree represents a Maximum binary heap. Each node indicates the priority and the total execution time of each process. This a round robin type of execution where the jobs are deleted from the heap, The system assigns the next CPU time (time slice) which is 2 unit to the highest priority process. Here, the root will be deleted and will be executed for two…arrow_forwardIn C programming: Write a main() function using the following requirements:• Define a SIZE constant (the value is irrelevant, but for testing, you may want to keep it small enough – no bigger than 5)• Create an array of course pointers using SIZE• Dynamically allocate each element of the array• Call inputAllCourses()• Call printAllCourses().arrow_forwardAnswer the following as completely as possible in your own words:1. Explain how an array is sent to a function as a parameter.2. State which parameters should almost always be sent to any function which modifies an array. Explain why.3. Explain the similarity between index notation and pointer arithmetic.arrow_forward
- Write a paper that summarizes the chapter (or an online resource) that may help you understand the concept of pointers. Include the following topics in the paper. Include illustrations either from the book, or an online source or your own illustration. Come up with an introduction Pointer Variable Declarations and Initialization Pointer Operators Pass-by-Reference with Pointers Built-In Arrays Using const with Pointers sizeof Operator Pointer Expressions and Pointer Arithmetic Relationship Between Pointers and Built-In Arrays Pointer-Based String About Smart Pointersarrow_forwardHow simple is it to transfer shared references into another array in C++? List approaches to tackle the issue. Do shared pointers transfer the objects they control? Explain?arrow_forwarduse Advanced C++ techniques, containers and features to refactor the C/C++ algorithm. The purpose is toreplace appropriate declarations and code segments with Advanced C++ declarations and code. * Replace all arrays with appropriate STL containers. * Use STL algorithms to REPLACE existing logic where appropriate. * Use smart and move pointers where pointers are needed. * Use lambda expressions where appropriate. * Use C++ style casting when needed. * Look for opportunities where tuples could be used. * The code listing is in C and C++. If you don't understand someof the C code or C functions, please google. If there are logic or syntax problems, please fix. int Algorithm(int a[], int x, int y) { int p, i, j = x; p = y; for(int i=x; i < y; i++) { if(a[i] < a[p]) { swap(&a[i], &a[j]); j++; } } swap(&a[p], &a[j]); return j;}arrow_forward
- When asked, "What is a pointer variable?" What should we do now? That's because it's an array that changes on the go. Why are pointers and dynamic arrays problematic?arrow_forwarduse Advanced C++ techniques, containers and features to refactor the C/C++ algorithm. The purpose is toreplace appropriate declarations and code segments with Advanced C++ declarations and code. * Replace all arrays with appropriate STL containers. * Use STL algorithms to REPLACE existing logic where appropriate. * Use smart and move pointers where pointers are needed. * Use lambda expressions where appropriate. * Use C++ style casting when needed. * Look for opportunities where tuples could be used. * The code listing is in C and C++. If there are logic or syntax problems, please fix. #define BIND(A,L,H) ((L)<(A)?(A)<(H)?(A):(H):(L)) char dih[50],dah[50],medium[30],word[30],*dd[2] = {dih,dah};const char *ascii = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.,?'!/()&:;=+-_\"$@", *itu[] =…arrow_forwardQUESTION 1 When defining a Java array, the index range of the array: Must start at 1 Must start at 0 Can be a customized range (from 2 to 5, e.g.) at compilation time Can be a customized range (from 2 to 5, e.g.) at run timearrow_forward
- How can I quickly copy a group of shared references from one array into another in C++? Create a list of potential responses to the challenge at hand. Does copying shared pointers also copy the objects they manage? Explainarrow_forwardI'm stuck on this question and I don't know how I should be approaching this. What should I do? Our focus is on pointers and dynamic arrays through C++arrow_forwardThere have been reports of hanging and wild pointers being an issue with the pointers? provide a good illustrationarrow_forward
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