int tab[5];      for(int i = 4;i>=0;i--)       {         tab[i] = 4 - i;         cout<

// Program 1#include <iostream>using namespace std;int main (){ cout << " i j" <<endl; cout << "----------" <<endl; int Array1[ 5 ]; // Array1 is an array of 5 integers for ( int i = 0; i < 5; i++ ) // initialize elements of array i to 0 { Array1[i] = i + 1; // Array1[i] + 1 cout <<"\n "<< i <<" "<< Array1[i] ; // Display i & Array[i] cout <<"\n"; }return 0; }   // Program 2#include <iostream>using namespace std;int main (){ cout << " i Array[i]" <<endl; cout << "----------------" <<endl; int Array1[ 5 ]; // Array1 is an array of 5 integers for ( int i = 0; i < 5; i++ ) // initialize elements of array i to 0 { Array1[i] = i + 1; // Array1[i] + 1 cout <<"\n "<< i <<" "<< Array1[i] ; // Display i & Array[i] for ( int j = 0; j < 5; j++ ) { Array1[j] = j + 2; cout <<"\n "<< j <<" "<< Array1[j] ; // Display j & Array[j] } cout…

C++ What is the output? int columns;int rows;for (rows = 0; rows < 2; ++rows) {         for (columns = 0; columns < 3; ++columns) {      cout<<"x";   }   cout<<endl;;}

#include <iostream>#include <iomanip>#include <cmath>using namespace std; double findHypotenuse(double side1, double side2){    double h = sqrt((side1 * side1) + (side2 * side2 ));    return h;} int main(){         int side1;   int side2;    cin >> side1;    cin >> side2;    cout << fixed << showpoint;    cout << setprecision(2);    cout << "Hypotenuse: ";    cout << findHypotenuse(side1, side2)<< endl;   return 0;}   ---trying to make this accpet user input but cannot make it work, if i can get assistance that would be amazing thank you

#include <stdio.h> #include <stdlib.h> #include <string.h> #define EMPS_SIZE 20 #define SSN_SIZE 9 #define MAX_EMPS 19 typedef struct {   int salary;   int yearBorn;   char ssn[SSN_SIZE];   char * name; } Employee; Employee * emps[EMPS_SIZE]; int totalEmps = 0;   void main(void) {     int end = 1;     char * command;     char buff[256];     char * findEmp;     char findBuff[256];     char * sortType;     char sortBuff[256];     char hire[] = "HIRE";     char list[] = "LIST";     char quit[] = "QUIT";     char find[] = "FIND";     char fire[] = "FIRE";     char _sort[] = "SORT";     char salary[] = "SALARY";     char name[] = "NAME";   char save[] = "SAVE";     printf("Welcome to the Employee Manager dashboard!\n");     while (end) {       printf("Would you like to HIRE, LIST, FIND, FIRE, SORT,SAVE or QUIT?\n\n");       scanf("%s", buff);       command = malloc(strlen(buff + 1));       strcpy(command, buff);       printf("You entered the command: %s\n\n", command);…

#include #include #include struct Point2d { double x; double y; void print() { // example: (2.5,3.64) std::cout << "(" << x << "," << y << ")" << std::endl; } double length() const { return std::sqrt(x * x + y * y); } // const Point2D & ==> function can't modify 'other' // the second const ==> function can't modify x, y Point2d add(const Point2d &other) const { Point2d result; result.x = x + other.x; result.y = y + other.y; return result; } }; // // do NOT modify above this line // Point2d discplacement(std::string commands) { // TODO: re-write this Point2d p = {0, 0}; return p; } // // do NOT modify below this line // void check(Point2d result, double x , double y) { if (result.x != x || result.y != y) { std::cout << "fail" << std::endl; } else { std::cout << "pass" << std::endl; } } int main() { Point2d result =…

#include <iostream>#include <string>#include <climits> using namespace std;class BalancedTernary {  protected:    // Store the value as a reversed string of +, 0 and - characters    string value;   // Helper function to change a balanced ternary character to an integer  int charToInt(char c) const {    if (c == '0')      return 0;    return 44 - c;  }   // Helper function to negate a string of ternary characters  string negate(string s) const {    for (int i = 0; i < s.length(); ++i) {      if (s[i] == '+')        s[i] = '-';      else if (s[i] == '-')        s[i] = '+';    }    return s;  }   public:    // Default constructor    BalancedTernary() {      value = "0";    }   // Construct from a string  BalancedTernary(string s) {    value = string(s.rbegin(), s.rend());  }   // Construct from an integer  BalancedTernary(long long n) {    if (n == 0) {      value = "0";      return;    }     bool neg = n < 0;    if (neg)      n = -n;     value = "";    while (n !=…

1. Implement a class IntArr using dynamic memory. a. data members: capacity: maximum number of elements in the array size: current number of elements in the array array: a pointer to a dynamic array of integers b. constructors: default constructor: capacity and size are 0, array pointer is nullptr user constructor: create a dynamic array of the specified size c. overloaded operators: subscript operator: return an element or exits if illegal index d. "the big three": copy constructor: construct an IntArr object using deep copy assignment overload operator: deep copy from one object to another destructor: destroys an object without creating a memory leak e. grow function: "grow" the array to twice its capacity f. push_back function: add a new integer to the end of the array g. pop_back function: remove the last element in the array h. getSize function: return the current size of the array (not capacity) i. Use the provided main function (next page) and output example Notes a. grow…

#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()…

C++ complete and create magical square #include <iostream> using namespace std; class Vec {public:Vec(){ }int size(){return this->sz;} int capacity(){return this->cap;} void reserve( int n ){// TODO:// (0) check the n should be > size, otherwise// ignore this action.if ( n > sz ){// (1) create a new int array which size is n// and get its addressint *newarr = new int[n];// (2) use for loop to copy the old array to the// new array // (3) update the variable to the new address // (4) delete old arraydelete[] oldarr; } } void push_back( int v ){// TODO: if ( sz == cap ){cap *= 2; reserve(cap);} // complete others } int at( int idx ){ } private:int *arr;int sz = 0;int cap = 0; }; int main(){Vec v;v.reserve(10);v.push_back(3);v.push_back(2);cout << v.size() << endl; // 2cout << v.capacity() << endl; // 10v.push_back(3);v.push_back(2);v.push_back(3);v.push_back(4);v.push_back(3);v.push_back(7);v.push_back(3);v.push_back(8);v.push_back(2);cout…