Zoho interview for 2 years Experienced Java

So, recently I had my Zoho interview. I was able to clear my first and second round. Third round results are still waiting.

1st round was based on java and c, test consists of 30 conceptual questions to be completed in 90 mins. Questions like worst case of merge sort, static concepts, inheritance concepts, if space is an issue which sorting we will use, no of queue needs to be there to implement stack etc

Results were announced in 3 weeks.

2nd round was totally programming. In 3 hours we had to finish 5 questions.

1) Reversing the string without reversing the place of delimiters and dont use String manipulation.
2) Given a no, you have to tell whether the binary digits generated are palindrome or not. Array cannot be used.
3) Pattern generator if no given are even-
I/p-4

O/p-

4444

4334

4334

4444

I/p – 6

O/p-

666666

655556

654456

654456

655556

666666

4) To find the max path in a 2d array. You will start from the first element and you have to reach the last element. You can only go rightwards and downwards.

I/p-

10 20

4  3

O/p – path followed 10 – 20 – 3

Sum is 33.

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