#include <stdio.h>

void function1( unsigned int arr1[] )
{
    arr1[1] = 10;
}

void main(void) {
    volatile unsigned int arr1[10] = {0};
    printf("before calling function : %d %d %d \n" , arr1[0], arr1[1], arr1[2]);
    function1(arr1);
    printf("after calling function : %d %d %d \n" , arr1[0], arr1[1], arr1[2]);
}