如何检查整数中的重复序列

def find_duplicate_integers(numbers):
    set_numbers = set(numbers)
    duplicate_integers = set_numbers.intersection(set_numbers)
    return list(duplicate_integers)

def find_duplicate_integers(numbers):
    hash_table = {}
    duplicate_integers = []
    
    for number in numbers:
        if number in hash_table:
            duplicate_integers.append(number)
        else:
            hash_table[number] = 1
    
    return duplicate_integers

def find_duplicate_integers(numbers):
    sorted_numbers = sorted(numbers)
    duplicate_integers = []
    
    for i in range(1, len(sorted_numbers)):
        if sorted_numbers[i] == sorted_numbers[i - 1]:
            duplicate_integers.append(sorted_numbers[i])
    
    return duplicate_integers