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Interview Questions for Delta Air Lines

1. What is the best approach to cost optimization?

2. Explain how you handled data imbalance.

3. How is availability for S3 achieved across regions?

4. Sum of Even & Odd Digits You need to determine the sum of even digits and odd digits separately from a given integer. Input: The first line of input is an integer T representing the number of test cases. Each test case consists of a single line with an integer N. Output: For each test case, output two space-separated integers: the sum of even digits and the sum of odd digits, respectively. Example: Input: 2132452468 Output: 6 920 0 Constraints: 1 <= T <= 5 0 <= N <= 10^{18} Note: You do not need to print anything yourself. Just implement the function to return the required values.

5. Explain the RANKX function in Power BI.

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