Description
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:
- All elements in
nums
are unique. - The difference between the maximum element and the minimum element in
nums
equalsnums.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.
Example 1:
Input: nums = [4,2,5,3] Output: 0 Explanation: nums is already continuous.
Example 2:
Input: nums = [1,2,3,5,6] Output: 1 Explanation: One possible solution is to change the last element to 4. The resulting array is [1,2,3,5,4], which is continuous.
Example 3:
Input: nums = [1,10,100,1000] Output: 3 Explanation: One possible solution is to: - Change the second element to 2. - Change the third element to 3. - Change the fourth element to 4. The resulting array is [1,2,3,4], which is continuous.
Constraints:
1 <= nums.length <= 105
1 <= nums[i] <= 109
Solution
Python3
class Solution:
def minOperations(self, nums: List[int]) -> int:
N = len(nums)
nums = sorted(set(nums))
res = N - 1
for i, start in enumerate(nums):
end = start + N - 1
index = bisect_right(nums, end)
gap = index - i
res = min(res, N - gap)
return res