You are given an integer array nums. In one operation, you can replace any element in nums with any integer.
nums is considered continuous if both of the following conditions are fulfilled:
nums are unique.nums equals nums.length - 1.For example, nums = [4, 2, 5, 3] is continuous, but nums = [1, 2, 3, 5, 6] is not continuous.
Return the minimum number of operations to make nums continuous.
\n
Example 1:
\n\n\nInput: nums = [4,2,5,3]\nOutput: 0\nExplanation: nums is already continuous.\n\n\n
Example 2:
\n\n\nInput: nums = [1,2,3,5,6]\nOutput: 1\nExplanation: One possible solution is to change the last element to 4.\nThe resulting array is [1,2,3,5,4], which is continuous.\n\n\n
Example 3:
\n\n\nInput: nums = [1,10,100,1000]\nOutput: 3\nExplanation: One possible solution is to:\n- Change the second element to 2.\n- Change the third element to 3.\n- Change the fourth element to 4.\nThe resulting array is [1,2,3,4], which is continuous.\n\n\n
\n
Constraints:
\n\n1 <= nums.length <= 1051 <= nums[i] <= 109给你一个整数数组 nums 。每一次操作中，你可以将 nums 中 任意 一个元素替换成 任意 整数。
如果 nums 满足以下条件，那么它是 连续的 ：
nums 中所有元素都是 互不相同 的。nums 中 最大 元素与 最小 元素的差等于 nums.length - 1 。比方说，nums = [4, 2, 5, 3] 是 连续的 ，但是 nums = [1, 2, 3, 5, 6] 不是连续的 。
请你返回使 nums 连续 的 最少 操作次数。
\n\n
示例 1：
\n\n输入：nums = [4,2,5,3]\n输出：0\n解释：nums 已经是连续的了。\n\n\n
示例 2：
\n\n输入：nums = [1,2,3,5,6]\n输出：1\n解释：一个可能的解是将最后一个元素变为 4 。\n结果数组为 [1,2,3,5,4] ，是连续数组。\n\n\n
示例 3：
\n\n输入：nums = [1,10,100,1000]\n输出：3\n解释：一个可能的解是：\n- 将第二个元素变为 2 。\n- 将第三个元素变为 3 。\n- 将第四个元素变为 4 。\n结果数组为 [1,2,3,4] ，是连续数组。\n\n\n
\n\n
提示：
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