从排序数组中删除重复项(不同的最终结果)

def remove_duplicates(nums):
    if not nums:
        return 0
    
    i = 0
    for j in range(1, len(nums)):
        if nums[j] != nums[i]:
            i += 1
            nums[i] = nums[j]
    return i + 1

# 示例使用
nums = [1, 1, 2, 2, 3, 4, 4, 5]
new_length = remove_duplicates(nums)
print("New length:", new_length)
print("Array after removing duplicates:", nums[:new_length])

nums.sort()
new_length = remove_duplicates(nums)

def remove_duplicates_with_set(nums):
    seen = set()
    result = []
    for num in nums:
        if num not in seen:
            seen.add(num)
            result.append(num)
    return result

# 示例使用
nums = [1, 1, 2, 2, 3, 4, 4, 5]
result = remove_duplicates_with_set(nums)
print("Array after removing duplicates:", result)