Given this function:int functionThree(int& v)v = v * 2;cout << "Var val = " < Write a function calledbool never13(...)It takes an array of integers and the array size as parameters.* must return false if any array elements are 13, and true otherwise.CS Scanned with CamScannerHint: This should be about 10-12 lines, if every bracket is on its own line.

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Answered: Given this function: int…

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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Please help in C++
#include <iostream> #include <cmath> using namespace std; // declare functions void display_menu(); void convert_temp(); double to_celsius(double fahrenheit); double to_fahrenheit(double celsius); int main() { cout << "Convert Temperatures\n\n"; display_menu(); char again = 'y'; while (again == 'y') { convert_temp(); cout << "Convert another temperature? (y/n): "; cin >> again; cout << endl; } cout << "Bye!\n"; } // define functions void display_menu() { cout << "MENU\n" << "1. Fahrenheit to Celsius\n" << "2. Celsius to Fahrenheit\n\n"; } void convert_temp() { int option; cout << "Enter a menu option: "; cin >> option; double f = 0.0; double c = 0.0; switch (option) { case 1: cout << "Enter degrees Fahrenheit: "; cin >> f; c =…
3. (a) A PHP function is defined as follows: function planets ($arr) { if ($arr [1]) { print "Mercury"; } else { for ($i=0; $i <= $arr [2]; $i++) {print $arr [3] [$i]; } } print count ($arr); } Recall that array $arr can be defined using a statement of the form: $arr = array (...); (i) Give an array $arr such that planets ($arr) prints Mercury For this case, what is the output of the instruction print count ($arr); Give an array $arr such that planets ($arr) prints Venus (ii)
Question 5 Write the code for the function printRoster, it should print out the contacts in a format similar to the example. You can use a range-based for-loop and auto to simplify the solution, if you wish. #include #include #include #include #include using namespace std; void printRoster(map>>& roster) { // Fill code here int main() { map>> roster; roster["ELCO"]["CS-30"]. emplace_back("Anthony Davis"); roster["ElCo"]"cS-30"j. emplace_back("Talen Horton-Tucker"); roster["ElCo"Ï"BUS-101"].emplace_back("LeBron James"); roster["SMC"]["CHEM-101"].emplace_back("Russell Westbrook"); printRoster(roster); return 0; Here is the sample output: ElCo BUS-101: LeBron James CS-30: Anthony Davis Talen Horton-Tucker SMC CHEM-101: Russell Westbrook
QUESTION 6 Given the code: void a(int n) { if(n<1) { cout << n*2 < " "; return; } cout << n*2 << " "; a(n-1); } 1. Trace the function when n is 4.
Given the C++ code: // toh.cpp#include <iostream>#include <vector>using namespace std; int main() { vector<int> t[3]; int n; cout << "Enter the number of rings: "; cin >> n; int from = 0; int candidate = 1; int to, move = 0; if ( n % 2 == 0) to = 2; // (from + to)%mod3, counter clockwise else to = 1; // (from + to)%mod3, clockwise for ( int i = n + 1 ; i >= 1; i-- ) t[0].push_back(i); t[1].push_back(n+1); t[2].push_back(n+1); if ( n % 2 == 0 ) { while ( t[1].size() < (n+1) ) { cout << "move " << ++move << ":" << " Move candidate " << candidate; cout << " from tower " << (char) (from + 'A'); cout << " to tower " << (char)(to + 'A') << endl; t[to].push_back(t[from].back()); t[from].pop_back(); if (t[(to+2)%3].back() < t[(to+1)%3].back()) from =…
The term function call refers to running the function. Which lines of code does your group think calls the DonationTimeLeft function? Write the line numbers below.
C++ prob.
explain the functionality used in the below program. explain all the functions and algorithem used in this program. #include<iostream>#include<string.h>using namespace std;#define ROW 5#define COL 5// A function to check if a given// cell (row, col) can be included in DFSint isSafe(int M[][COL], int row, int col,bool visited[][COL]){// row number is in range, column// number is in range and value is 1// and not yet visitedreturn (row >= 0) && (row < ROW) && (col >= 0) && (col < COL) && (M[row][col] &&!visited[row][col]);}// A utility function to do DFS for a// 2D boolean matrix. It only considers// the 8 neighbours as adjacent verticesvoid DFS(int M[][COL], int row, int col,bool visited[][COL]){// These arrays are used to get// row and column numbers of 8// neighbours of a given cellstatic int rowNbr[] = { -1, -1, -1, 0, 0, 1, 1, 1 };static int colNbr[] = { -1, 0, 1, -1, 1, -1, 0, 1 };// Mark this cell as…

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Given this function: int functionThree(int& v) v = v * 2; cout << "Var val = " <