Answer:
This solution is implemented in C++
void makePositive(int arr[]){
  int i =0;
  while(arr[i]!=0){
    if(arr[i]<0){
      arr[i] = abs(arr[i]);
    }
    i++;
  }
  i = 0;
  while(arr[i]!=0){
  cout<<arr[i]<<" ";
  i++;
} Â
}
Explanation:
This defines the function makePositive
void makePositive(int arr[]){
This declares and initializes i to 0
  int i =0;
The following iteration is repeated until the last element in the array
  while(arr[i]!=0){
This checks if current array element is negative
    if(arr[i]<0){
If yes, it changes it to positive
      arr[i] = abs(arr[i]);
    }
The next element is then selected
    i++;
  }
This sets i to 0
  i = 0;
The following iteration prints the updated content of the array
  while(arr[i]!=0){
  cout<<arr[i]<<" ";
  i++;
} Â
}
See attachment for full program which includes the main