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when i was submitting the code without passing the string by referrence it is TLE , but when i passed by reference ,why was that?
Longest Palindromic subsequnce
Hello @sheikhhaji18 in leetcode solutions as the test cases are larger then when you dont pass the strings by reference then it forms the new string for everycall and then it performs every operations as like it has never done before.
when you pass it by reference it remember what has aleady benn done so then it becomes more optimised.
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