Developer Mainframe Interview Questions

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Convert number above in hexadecimal 312312 Ex. 255 -> FF 254 -> 254 div 16 = 14, int(254/16) = 15. -> F, E Later I found the detailed Division-remainder in source base http://en.wikipedia.org/wiki/Hexadecimal#Division-remainder_in_source_base
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Perl Developer

Interviewed at Booking.com

4
Feb 6, 2015

Convert number above in hexadecimal 312312 Ex. 255 -> FF 254 -> 254 div 16 = 14, int(254/16) = 15. -> F, E Later I found the detailed Division-remainder in source base http://en.wikipedia.org/wiki/Hexadecimal#Division-remainder_in_source_base

Given an array of unique non-negative integers, {A1,…,An}, and a positive integer, X, write a function that finds all pairs of numbers in the array that sum to X”. You are given an integer array nums sorted in ascending order (with distinct values), and an integer target. Suppose that nums is rotated at some pivot unknown to you beforehand (i.e., [0,1,2,4,5,6,7] might become [4,5,6,7,0,1,2]).” Take a singly-linked list, and reorder in such a way that the first element points to the last element, second element points to second-to-last element, and so on.
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Software Engineer

Interviewed at Expedia Group

3.7
Feb 1, 2021

Given an array of unique non-negative integers, {A1,…,An}, and a positive integer, X, write a function that finds all pairs of numbers in the array that sum to X”. You are given an integer array nums sorted in ascending order (with distinct values), and an integer target. Suppose that nums is rotated at some pivot unknown to you beforehand (i.e., [0,1,2,4,5,6,7] might become [4,5,6,7,0,1,2]).” Take a singly-linked list, and reorder in such a way that the first element points to the last element, second element points to second-to-last element, and so on.

Given a database, where we know some portion of data (e.g. say 20%) is accessed more than the other portion of the database by the client. We have a frontend that client requests data from. Design a data structure that will increase the efficiency of access of objects. And we know that we can only hold on to n elements in memory.
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Software Development Engineer

Interviewed at Microsoft

4
Aug 2, 2014

Given a database, where we know some portion of data (e.g. say 20%) is accessed more than the other portion of the database by the client. We have a frontend that client requests data from. Design a data structure that will increase the efficiency of access of objects. And we know that we can only hold on to n elements in memory.

Merge 2 sorted arrays A and B Result should end up in B, which has available space for all items Utilize the space in B, not using temporary arrays Result in sorted array in B A { 2, 5, 8, 12, 15} B { 3, 5, 7, 9, , , , , , }
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Software Development Engineer

Interviewed at Microsoft

4
Dec 7, 2016

Merge 2 sorted arrays A and B Result should end up in B, which has available space for all items Utilize the space in B, not using temporary arrays Result in sorted array in B A { 2, 5, 8, 12, 15} B { 3, 5, 7, 9, , , , , , }

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