struct remove_from_front_of_vector { // Function takes no parameters, removes the book at the front of a vector, // and returns nothing. void operator()(const Book& unused) { (/ /// TO-DO (12) ||||| // ///// // Write the lines of code to remove the book at the front of "my_vector" // // Remember, attempting to remove an element from an empty data structure // a logic error. Include code to avoid that. /// END-TO-D0 (12) ||||| } std::vector& my_vector; };

struct remove_from_front_of_vector { // Function takes no parameters, removes the book at the front of a vector, // and returns nothing. void operator()(const Book& unused) { (/ /// TO-DO (12) ||||| // ///// // Write the lines of code to remove the book at the front of "my_vector" // // Remember, attempting to remove an element from an empty data structure // a logic error. Include code to avoid that. /// END-TO-D0 (12) ||||| } std::vector& my_vector; };

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Using C++ Assume proper includes have been executed, but not using directive or declaration. Write a definition of an iterator for a vector named vec of int values. Write a for loop that will display the contents vec on the screen, separated by spaces. Use iterators for the loop control.
SAS 6 2.Write a function with vector as its parameter. The function will display all the elements of the vector specified.
#include <iostream>#include <cstdlib>#include <time.h>#include <chrono> using namespace std::chrono;using namespace std; void randomVector(int vector[], int size){ for (int i = 0; i < size; i++) { //ToDo: Add Comment vector[i] = rand() % 100; }} int main(){ unsigned long size = 100000000; srand(time(0)); int *v1, *v2, *v3; //ToDo: Add Comment auto start = high_resolution_clock::now(); //ToDo: Add Comment v1 = (int *) malloc(size * sizeof(int *)); v2 = (int *) malloc(size * sizeof(int *)); v3 = (int *) malloc(size * sizeof(int *)); randomVector(v1, size); randomVector(v2, size); //ToDo: Add Comment for (int i = 0; i < size; i++) { v3[i] = v1[i] + v2[i]; } auto stop = high_resolution_clock::now(); //ToDo: Add Comment auto duration = duration_cast<microseconds>(stop - start); cout << "Time taken by function: " << duration.count()…
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What advantages does a vector have over an array?
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#include <iostream>#include <vector>using namespace std; void PrintVectors(vector<int> numsList) { unsigned int i; for (i = 0; i < numsList.size(); ++i) { cout << numsList.at(i) << " "; } cout << endl;} int main() { vector<int> numsList; int userInput; int i; for (i = 0; i < 3; ++i) { cin >> userInput; numsList.push_back(userInput); } numsList.erase(numsList.begin()+1); numsList.insert(numsList.begin()+1, 102); numsList.insert(numsList.begin()+1, 100); PrintVectors(numsList); return 0;} Not all tests passed clearTesting with inputs: 33 200 10 Output differs. See highlights below. Special character legend Your output 33 100 102 10 Expected output 100 33 102 10 clearTesting with inputs: 6 7 8 Output differs. See highlights below. Special character legend Your output 6 100 102 8 Expected output 100 6 102 8 Not sure what I did wrong but the the 33…
please help me with coding
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