Reverse a doubly linked list.
Software Development Interview Questions
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A graph question.
Mostly technical question around work done earlier
Delete duplicate characters
Count # of A's in a sentence
Write the strstr function.
You're converting a string (s1) into another (s2) by changing the characters in s1. You can do add/delete/replace the characters of s1 to get s2. The cost of any of those operation for a character is 1. Find the minimum cost to convert s1 into s2. Write program and test cases for the same. For example: Convert "Hi" into "Hey". This would require minimum two cost. 1. Replace 'i' with 'e' in s1 2. Add 'y' to s1. Now we've s2.
Convert a number to a roman number
Remove repeated characters from a string
how to determine if 2 linked lists are merged at a common node in O(n) time
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