Implement a function for determining the validity of a string. The string is valid if parentheses are correctly distributed within the string.
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Write a function in language of your choice that takes in two strings, and returns true if they match. Constraints are as follows: String 1, the text to match to, will be alphabets and digits. String 2, the pattern, will be alphabets, digits, '.' and '*'. '.' means either alphabet or digit will be considered as a "match". "*" means the previous character is repeat 0 or more # of times. For example: Text: Facebook Pattern: F.cebo*k returns true
Given a m*n grid starting from (1, 1). At any point (x, y), you has two choices for the next move: 1) move to (x+y, y); 2) move to (x, y+x); From point (1, 1), how to move to (m, n) in least moves? (or there's no such a path)
Write a recursive function to determine prime number
How to remove a node from a singly-linked list when only given the pointer to the node
Find max k elements among mostly sorted list.
Was asked how I would implement division without using division or mod operators. The answer should return in the form quotient r remainder.
Given 2 numbers x and y, check if x is an integer power of y. For instance, x = 8, y = 2 would return true and x = 10 and y = 2 would return false since the first one is an integer power but the second isn't.
How to reverse a number, e.g. 1234.
Given heads of two linked lists. Find if the two linked lists intersect. Solution should not use extra memory.
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