查找列表中出现次数最多的数字范围

def find_most_frequent_range(nums):
    count_dict = {}
    max_count = 0

    # 统计每个数字出现的次数
    for num in nums:
        if num in count_dict:
            count_dict[num] += 1
        else:
            count_dict[num] = 1
        max_count = max(max_count, count_dict[num])

    range_dict = {}
    # 将数字按范围进行分组，并更新范围的出现次数
    for num in nums:
        for range_start in range(num // 10 * 10, num // 10 * 10 + 10):
            if range_start in range_dict:
                range_dict[range_start] += 1
            else:
                range_dict[range_start] = 1

    # 找到出现次数最多的范围
    most_frequent_range = None
    for range_start, count in range_dict.items():
        if count == max_count:
            most_frequent_range = range_start
            break

    return most_frequent_range

# 示例用法
nums = [12, 15, 18, 22, 25, 28, 12, 15, 18, 22, 25, 12, 15, 18]
most_frequent_range = find_most_frequent_range(nums)
print("出现次数最多的数字范围是:", most_frequent_range, "-", most_frequent_range + 9)