AMEX OA Summer intern

So today we had AMEX OA at 8PM, 3 DSA questions total 90 mins[Stipend - 1.25 LPM]

1. Disjoint Set Union distance ( similar to strivers sheet) could solve it but 1 testcase failed but do others

2. Minimum operations to manipulate a palindrome to make it string that's not palindrome [ Had to check the edge cases where string given is not palindrome wrote builder function completed it v easy]

3. Given a binary string manipulate it to get the minimum number of operations if the string V is odd must subtract 1 from it if even and positive must divide by 2 these are performed till the number becomes 0 return the minimum operations.. v v easy

Verdict - Mid OA.