Python3 clean Solution beats 💯 100% with Proof 🔥
Code\n\nclass Solution:\n    def minInsertions(self, s: str) -> int:\n        if s == s[::-1]: return 0 \n        n = len(s)\n        dp = [[0] * n for _ in ran
# Code\n```\nclass Solution:\n    def minInsertions(self, s: str) -> int:\n        if s == s[::-1]: return 0 \n        n = len(s)\n        dp = [[0] * n for _ in range(n)]\n        for i in range(n-1,-1,-1):\n            dp[i][i] = 1\n            for j in range(i+1,n):\n                if s[i] == s[j]:dp[i][j] = dp[i+1][j-1]+2\n                else: dp[i][j] = max(dp[i+1][j], dp[i][j-1])\n        return n-dp[0][n-1]\n```\n# Proof \n![Screenshot 2023-04-22 at 8.55.23 AM.png](https://assets.leetcode.com/users/images/1e0f2718-936c-46b2-a3bb-4c05969dace8_1682134037.1165948.png)\n
['Python3']