Thread: finding common numbers

I am trying to find the numbers in the two arrays that are in common.

Say they are:

int A[3] = {1, 2, 5};
int B[4] = {1, 5, 9, 10};

Answer should say A \ B = {1, 5}

Code:

#include <stdio.h>

int main (void)
{
    int A[3] = {1, 2, 5};
    int B[4] = {1, 5, 9, 10};

    int x, z;

   for( int x = 0; x < 3; x++ )
    for( int z = 0; z < 4; z++ )

}

I have declared the arrays and I am think the rest is correct.

I'm not sure how to find the common numbers or how to associate the loops with the arrays.

New to C and Arrays.