Question

Allocate 100 integers and assign the resulting pointers to the elements of ip_arr. Initialize each integer value to -1.

Answer 1

Answer:

#include <iostream>

using namespace std;

int main() {

   int *ip_arr,n;//pointer name inp_arr and integer n to store the size.

   cin>>n;//size.

   for(int  i=0;i<n;i++)

   ip_arr[i]=-1;//assigning -1 to every element.

  for(int i=0;i<n;i++)

  {

       cout<<ip_arr[i]<<" ";//printing every element.

  }

return 0;

}

output:-

100

-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1  

Explanation:

I am taking input of size.You should enter 100 for 100 values which have value -1.