
    Given a list of traffic density measurements from different road segments, determine how many pairs of segments can be combined into viable delivery routes, where two segments are considered compatible if their traffic density values XOR to an even number. The traffic density for each segment is represented as a binary value, and finding compatible segment pairs helps optimize the delivery fleet's route planning.
    

    
def find_even_pair(A):
    """
    Given a list of traffic density measurements from different road segments, determine how many pairs of segments can be combined into viable delivery routes, where two segments are considered compatible if their traffic density values XOR to an even number. The traffic density for each segment is represented as a binary value, and finding compatible segment pairs helps optimize the delivery fleet's route planning.
    

    """
def find_even_pair(A):
    """
    Given a list of traffic density measurements from different road segments, determine how many pairs of segments can be combined into viable delivery routes, where two segments are considered compatible if their traffic density values XOR to an even number. The traffic density for each segment is represented as a binary value, and finding compatible segment pairs helps optimize the delivery fleet's route planning.
    

    """
    count = 0
    for i in range(0, len(A)):
        for j in range(i + 1, len(A)):
            if (A[i] ^ A[j]) % 2 == 0:
                count += 1
    return count