Write code to do the following:
1) declare a variable ptr as a pointer to int and initialize it to NULL
2) dynamically allocate memory for an array of 100 elements
3) read 100 elements from the standard input device and store them in the array.
This is what I have so far, I'd like to know if its ok or if something is wrong.
int *ptr = NULL;
ptr = new int[100];
cin >> dataPtr [arr];
Your input needs a for loop wrapped around it.
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
>>cin >> dataPtr [arr];
This reads one element from the input and stores it into the index arr.
C++ has no concept of matrices, so you have to repeat an action for every element of the array.
Btw, consider learning about std::vector later.
Originally Posted by Adak
