Variables 'a' in main function and 'a' in test function are using the same memory location, True or False?
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#include <iostream>
using namespace std ;
void test( int a){
a = a*3;
cout << &a << endl;
}
int main (){
int a = 15 ;
test( a );
cout << &a << endl;
}
Variables 'a' in main function and 'a' in test function are using the same memory location, True or False?
Every variable is a memory location and every memory location has its address defined which can be accessed using the ampersand (&) operator which denotes an address in memory.
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- NoneNone#include using namespace std; main() { int a=3, b=2,c=a*b; b++; a=b++; b++; cout<Language:C++ Please explain how the source code works: #include<iostream> using namespace std; int main(void) { char var[] = { 'x', 'y', 'z', 'w' }; cout << "Enter the number of variables in the equations: "; int n; cin >> n; cout << "\nEnter the coefficients of each variable for each equations"; cout << "\nax + by + cz + ... = d"; int mat[n][n]; int constants[n][1]; for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { cin >> mat[i][j]; } cin >> constants[i][0]; } cout << "Matrix representation is: "; for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { cout << " " << mat[i][j]; } cout << " " << var[i]; cout << " = " << constants[i][0]; cout << "\n"; } return 0; }#include using namespace std; int main() int x=1,y=2; for (int i=0; i<3; i++) e{ x=x*y; 8{ } cout<#include <iostream>using namespace std; int main(){ int x, y, z, w, visit; char s; cout<<"Details of charges are as follow: "<<endl; cout<<"Software Fault: 4 OMR"<<endl; cout<<"Screen Fault: 6 OMR"<<endl; cout<<"Network/Wi-Fi Fault: 8 OMR"<<endl; cout<<"Internal Hardware Fault: 10 OMR \n"<<endl; cout<<"Please enter your Service Issue: "<<endl<<"x for Software Fault"<<endl<<"y for Screen Fault"<<endl<<"z for Network Fault"<<endl<<"w for Hardware Fault \n"<<endl; cin>>s; if(s==x) cout<<"Software Fault: Price - 4 OMR "<<endl; else if(s==y) cout<<"Screen Fault: Price - 6 OMR"<<endl; else if(s==z) cout<<"Network/Wi-Fi Fault: Price - 8 OMR"<<endl; else if(s==w) cout<<"Internal Hardware Fault: Price - 10 OMR"<<endl; else…: Correct the syntax errors void Main () { int x, Y; const a = 14; cin >> x , y; www if a=x*y; cout << ok; www a =5* y; cout << a <<“endl “; ww Else cout <#include <iostream> #include <iomanip> using namespace std; int main(){cout<<" Welcome to Result Management System "<<endl<<endl; int mark[15];int i,j, temp , max , min, sum;float avr;for ( int i = 0 ; i<=14; i++){cout<<" Enter PDI Marks of Student "<<i<<": "; cin>>mark[i];cout<<endl;}for (i=0; i<=14; i++){for (j = i+1 ; j<= 14; j++){if( mark[i]< mark[j]) {temp = mark[i]; mark[i]= mark[j]; mark[j]= temp;} }}cout<<endl;for (int i= 0 ; i<=14; i++)cout<<setw(5)<<mark[i];cout<<endl<<endl;cout<<" All Students Marks in PDI (Highest to Lowest)"<<endl<<endl; max = mark[0];min= mark[0];for( i=0 ; i<=14; i++){if ( mark[i]> max) max = mark[i];if ( mark[i] <min) min = mark[i];}cout<<" Lowest Marks: "<<min<<endl<<endl;cout<<" Highest Marks: "<<max<<endl<<endl; {for ( i=0 ; i<=14; i++)sum+= mark[i];}avr=…#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 =…#include <iostream>#include <cmath>#include <iomanip>using namespace std; int main() { double x; double y; double z; cin >> x; cin >> y; /* Your code goes here */ cout << fixed << setprecision(1); // setprecision(1) outputs z with 1 decimal place. cout << z << endl; return 0;} having trouble with this code in C++#include<iostream> #include <cmath> using namespace std; int main() { float sp_Radius, sp_sa, sp_Volume; cout << "\nPlease Enter the radius of a Sphere = "; cin >> sp_Radius; sp_sa = 4 * M_PI * sp_Radius * sp_Radius; sp_Volume = (4.0/3) * M_PI * sp_Radius * sp_Radius * sp_Radius; cout << "\nThe Surface Area of a Sphere = " << sp_sa; cout << "\nThe Volume of a Sphere = " << sp_Volume; return 0; } C++ use this code and separate the program into three files. The main program containing the main function should be named main.cpp. The function definition file containing a function for the volume calculation and a function for the surface area calculation should be named SphereCalc.cpp. The function declaration file containing function declarations for the functions should be named SphereCalc.h. Make sure you include a Header Guard. Read the Radius from the Keyboard. If a negative number is provided, set the calculated value to zero.Recommended textbooks for youDatabase System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill Education
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