Write a function that will return the second longest string in a list of strings. You have to do a single pass on the list.
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How to add a counter to www.google.com to track the billionth user.
Find the lowest common ancestor for BST
I was asked a question about the following. If a user types in a n digit number on the telephone, how do you write a function to deduce if the number constitutes a valid word. For example, if the user enters 123, then can a valid word be made out of (a/b/c) + (d/e/f) + (g/h/i)
Reverse a linked list in place
Pets +------------------+--------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +------------------+--------------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | breed | varchar(255) | NO | | NULL | | | acquisition_date | datetime | NO | | NULL | | +------------------+--------------+------+-----+---------+----------------+ Customers +-------+--------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +-------+--------------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | name | varchar(255) | NO | | NULL | | +-------+--------------+------+-----+---------+----------------+ Sales +-------------+----------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-------------+----------+------+-----+---------+-------+ | customer_id | int(11) | NO | PRI | NULL | | | pet_id | int(11) | NO | PRI | NULL | | | date | datetime | NO | | NULL | | +-------------+----------+------+-----+---------+-------+ Q1 How many pets of each breed has the shop ever owned?
Given a list of integers that fall within a known short but unknown range of values, how to find the median value?
The dude basically asked me "what weird things have you found in using C?" Odd question...
they asked me to code for such a question: the input was a string and I was supposed to output the longest sub string with only 2 distinct chars in the sub string.
Assume you have a binary number 00110010, you apply some function on it and the number changes to some random number 10100011. Write a function to determine which numbers flipped from 0 to 1 and which bits flipped from 1 to 0. (You will have to write 2 different functions for 0 to 1 and 1 to 0).
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