Help me in solving DSAAGP08 problem

My issue

its showing me this -
Wrong Answer: Failed on a hidden test case
even my code is right.

My code

#include <stdio.h>

int main() {
    int arr[100] = {2, 4, 6, 8, 10}; // Initial array
    int *size = 5; // Current size of the array

    int positionToDelete = 2; // Index of the element to delete

    // Update the code to shift elements to fill the gap left by the deleted element
   for(int i=positionToDelete; i<*size-1; i++){
        arr[i] = arr[i+1];
   } 
    // Update the size of the array
   size--;
 
    // Print the updated array
    for (int i = 0; i < size; i++) {
        printf("%d ", arr[i]);
    }

    return 0;
}

Learning course: BCS301: Data structures
Problem Link: https://www.codechef.com/learn/course/abesit-dsa/ABESITDS05/problems/DSAAGP08