Question

2. (35 pts, 5 each) Consider the following array a. Write single-line statements to do the following double a[8] {0.0, = 10.0, 20.0, 30.0, 40.0), *p , ,g: Set the pointer p to point to the first element of the array - I ?-K-U) Set pointer q to point to the element with value 20.0 in the array as afn] with the correct n value. Use p above to triple the value stored in a[1] without using the variable narme a. | ?-(rt ,," Set q to point to the third element following the element p points to Print the address of p using printf Using p and q, print the number of elements from p to q, inclusive, using rintf Write an if statement that prints "YES" if p and q point to the same element and "NO" otherwise. This statement may have multiple lines. Ir?c%)''),j). elre

please answer all the questions.

Answer 1

1)p = a; //since a has the base address of the array
2)q = a+2;
3)*(p+1) *= 3;
4)q = p+3;
5)printf("%p",p);
6)printf("%d",(q-p));

following the cpp program to give idea about implementing and to manipulating array using pointer.

#include<bits/stdc++.h>
#define lli unsigned long long int
#define pb push_back
#define MAX 1e16

using namespace std;

int main()
{
    double a[5] = {0.0,10.0,20.0,30.0,40.0};
    double *p,*q;
  
    p = a;
    cout<<(*a)<<endl;
  
    q = (a+2);
    cout<<(*q)<<endl;
  
    *(p+1)*=3;
  
    cout<<a[1]<<endl;
  
    q = p+3;
  
    cout<<(*q)<<endl;
  
    printf("%p\n",p);
  
    printf("%d",(q-p));
}

CA PROSisth.cpp-Executing)- Dev-C+5.11 File Edit Search View Project Execute Tools AStyle WindowHelp 回個凹1.1 町CAUsers LuckyDesktop iPROS.sth.exe Luc sth.cpp 30 30 10 11 int 12 13 14 15 16 17 18 19 20 21 rocess exited after 0.07251 seconds with return value e ress any key to continue . 23 24 25 26 27 28 29 30 31 32 33 L dg CompilerResources dh Compile Log Deb Find Results Close -Cutput Size: 1.83525085449219 MiB - Compilation Time: 2.455 Shorten compiler paths n 0.015 seconds Insert Done Col: 5 Sel: 0 Lines: 33