Thread: C program with arrays, while loop, and sentinel value

Hi, for this assignment I must allow the user to enter numbers into an array. When the array size exceeds 50 or when the user enters -999, the array will be displayed.

The problem: The sentinel value is not being recognized, so I am not sure if the program works correctly at all. Here is my code.

Code:

#include<stdio.h>
#include<stdlib.h>
#define SIZE 50

int main()
{
 int value = 0, arr[SIZE] = {0}, i;
 printf("Enter up to 50 numbers. Type and enter -999 to stop the loop: ");
 
 while (arr[i] != -999 || arr[SIZE] < 50){
  scanf_s("%i", &arr[i]);
  printf("Enter a new number.\n");
 }
 
 for (i = 0; i < SIZE; i++){
  printf("%i\n", arr[i]);
 }
 system("pause");
}

I would appreciate some help and advice. I've been working most of today to figure this out.