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#include<stdio.h>
int digit_count_value(int *arr,size_t sz)
{
int hash[10] = {0};
for(size_t i = 0; i < sz; ++i) hash[arr[i] % 10]++;
for(size_t i = 0; i < sz; ++i) if(hash[i] != arr[i]) return 0;
return 1;
}
int main(void)
{
int arr1[] = {1,2,1,0};
int arr2[] = {0,3,0};
size_t sz1 = 4,sz2 = 3;
printf("%d\n",digit_count_value(arr1,sz1));
printf("%d\n",digit_count_value(arr2,sz2));
return 0;
}
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