You are given a 0-indexed integer array nums. The array nums is beautiful if:
Note that an empty array is considered beautiful.
You can delete any number of elements from nums. When you delete an element, all the elements to the right of the deleted element will be shifted one unit to the left to fill the gap created and all the elements to the left of the deleted element will remain unchanged.
Return the minimum number of elements to delete from nums to make it beautiful.
Examples
Example 1
Input: nums = [1,1,2,3,5]
Output: 1
Explanation: You can delete either nums[0] or nums[1] to make nums = [1,2,3,5] which is beautiful. It can be proven you need at least 1 deletion to make nums beautiful.
Example 2
Input: nums = [1,1,2,2,3,3]
Output: 2
Explanation: You can delete nums[0] and nums[5] to make nums = [1,2,2,3] which is beautiful. It can be proven you need at least 2 deletions to make nums beautiful.
Constraints
1 <= nums.length <= 105
0 <= nums[i] <= 105
2216. Minimum Deletions to Make Array Beautiful
Medium
30 Points
Array
Stack
Greedy
You are given a 0-indexed integer array nums. The array nums is beautiful if:
Note that an empty array is considered beautiful.
You can delete any number of elements from nums. When you delete an element, all the elements to the right of the deleted element will be shifted one unit to the left to fill the gap created and all the elements to the left of the deleted element will remain unchanged.
Return the minimum number of elements to delete from nums to make it beautiful.
Examples
Example 1
Input: nums = [1,1,2,3,5]
Output: 1
Explanation: You can delete either nums[0] or nums[1] to make nums = [1,2,3,5] which is beautiful. It can be proven you need at least 1 deletion to make nums beautiful.
Example 2
Input: nums = [1,1,2,2,3,3]
Output: 2
Explanation: You can delete nums[0] and nums[5] to make nums = [1,2,2,3] which is beautiful. It can be proven you need at least 2 deletions to make nums beautiful.
Constraints
1 <= nums.length <= 105
0 <= nums[i] <= 105
Minimum Deletions to Make Array Beautiful - Practice Coding | SlaveCode