//Given 2 arrays of ints, a and b, return true if they have the same first element or they have the same last element. Both arrays will be length 1 or more.

//

//commonEnd([1, 2, 3], [7, 3]) → true

//commonEnd([1, 2, 3], [7, 3, 2]) → false

//commonEnd([1, 2, 3], [1, 3]) → true

public boolean commonEnd(int[] a, int[] b) {

return (a[0]==b[0] || a[a.length-1]==b[b.length-1]);

}