Given a string, remove all the duplicate characters (not necessarily consecutive)
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Implement the "see and tell" algorithm with a given seed number x and a number of iterations y. Output the result on iteration y
Given a sorted array, write a program to decide if two elements sum up to a third.
Just one question: shift an array to the right by n positions such that the right most indexes are become the first ones and the first ones move ahead. like: 1 2 3 4 5 --> shift by 2 --> 4 5 1 2 3
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An optimal algorithm to check whether a hand of cards was a full house (in Poker) or not.
There is an NxM grid containing a robot at (1, 1) and a destination at (N, M). Robot can move only up or right. Some locations can have obstacles. Find the number of unique paths from (1, 1) to (N, M). What is the time complexity of your algorithm?
There are 20 floors in a building. If you're on an elevator and you're trying to get to the 20th floor, what is the probability that 4 people ahead of you click the 20th floor before you do? Assuming you click last.
How to determine if an Array of integers contains 3 numbers that sum to 0
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