InterviewBit Problems   Convert to Palindrome : Unsolved

About the Convert to Palindrome : Unsolved category (1)
I am getting RTE. Can someone tell me what I am doing wrong. I am using LCS to calculate the number of deletions (1)
Simplest cpp code (2)
Minimal understandable C++ code (5)
Solution with O(n) time complexity using 2 pointers techniq (3)
Time Limit Exceeded. How i increase efficiency in this code (1)
Using Longest palindromic subsequence (1)
Whats wrong in this, same code runs in local with expected result (1)
Easy python solution using list o(n) (1)
7 line python solution (1)
Editorial's approach is wrong (weak testcases) (4)
Weak Testcases (N^2 approach accepted) (2)
Question about recursive approach (1)
Why this solution is not o(n) (3)
O(n) Approach to solve the palindrome problem (1)
Wrong Code in Tutorial (1)