Create a single main function that does the following (all arrays should be dyna

Question

• Create      a single main function that does the following (all arrays should be      dynamic, not static):
  •   
  • Creates       an integer array of size 10
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  • Using       square bracket notation, fill the array with the following values (in       order):
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    •    
    • 100,        90, 80, ..., 10
    •   
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  • Print       all of the values from the array to verify that they were set properly       using square bracket notation
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  • Using       the same variable, make another integer array of size 5 (not       reallocated).
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  • Fill       this array with the following values using pointer arithmetic (not square       bracket notation)
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    •    
    • 0,        -5, 5, 10, -10
    •   
  •   
  • Print       all of the values from the array using pointer arithmetic
  •   
  • Clean       up any memory that needs to be freed

Explanation / Answer

#include<stdio.h>

#include<malloc.h>

int main()

{

int i;

int * arr;

//allocating space for an array of size 10

arr = malloc(10*sizeof(int));

//initializing the array using bracket notation

for(i=0;i<10;i++)

arr[i]=(10-i)*10;

//printing the array using bracket notation

for(i=0;i<10;i++)

printf("%d ",arr[i]);

//initializing the array using pointer arithmetic

*(arr+0) = 0;

*(arr+1) = -5;

*(arr+2) = 5;

*(arr+3) = 10;

*(arr+4) = -10;

//printing the array using pointer arithmetic

for(i=0;i<5;i++)

printf("%d ",*(arr+i));

//freeing the allocated memory

free(arr);

return 0;

}

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