Best way to compare two int arrays of the same length?

Question

what is the best way to compare int arrays b and c with a:

int a[] = {0,1,0,0,1};
int b[] = {0,1,0,0,1};
int c[] = {1,1,0,0,1};

b and c are

Answer 1

Use a loop and compare the individual elements one after another.