8 lines solution using python3 simplest of all
Intuition\n Describe your first thoughts on how to solve this problem. \n\n# Approach\n Describe your approach to solving the problem. \n\n# Complexity\n- Time 
# Intuition\n<!-- Describe your first thoughts on how to solve this problem. -->\n\n# Approach\n<!-- Describe your approach to solving the problem. -->\n\n# Complexity\n- Time complexity:\n<!-- Add your time complexity here, e.g. $$O(n)$$ -->\n\n- Space complexity:\n<!-- Add your space complexity here, e.g. $$O(n)$$ -->\n\n# Code\n```\nclass Solution:\n    def minOperations(self, nums: List[int]) -> int:\n        ans=0\n        for i in range(len(nums)-1):\n            if nums[i]>=nums[i+1]:\n                ans=ans+nums[i]-nums[i+1]+1\n                nums[i+1]=nums[i]+1\n            else:\n                ans+=0\n        return ans\n\n\n```
['Python3']