Deletion of elements from an array -- 1-D array -- DSA in C

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#include <stdio.h>
#include <stdlib.h>
int main() {
    
    int *arr; // array pointer
 
    int size = 10; // declare array size.
 
    arr = (int *)calloc(size, sizeof(int)); // allocate memory for the array.
 
 
    int i, n, pos, arr2[10];
 
    printf("Enter number of elements: ");
    scanf("%d", &n);
 
    for(i=0; i<n; i++) {
 
        printf("\n arr[%d] = ", i);
        scanf("%d", &arr[i]);
 
    }
 
    printf("\nEnter the position from which the number has to be deleted : ");
    scanf("%d", &pos);
 
    for(i=pos; i<n-1;i++) {
        arr[i] = arr[i+1];
    }
 
    n--;
 
    for(i=0; i<n; i++) {
 
        arr2[i] = arr[i]; // populate the second array with the intended number of elements.
 
    }
 
    free(arr); // free the memory occupied by the array.
 
    printf("\n The array after deletion is : ");
    for(i=0;i<n;i++) {
 
        printf("\n arr2[%d] = %d", i, arr2[i]);
 
    }
 
 
}

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