Describe and code an algorithm that returns the first duplicate character in a string?
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What is Little Endian and Big Endian?
How many golf balls can fit in a school bus?
Assume a matrix of integers they are sorted in boh row and column vice .. how do u find a given number from the matrix in a optimal way?
How to find the max number of a shift buffer queue. For instance, there is an array like 5, 6,8,11,1,2, how to find the max number, which is 11 in this example.
1. return the maximum product of 3 numbers in an array 2. print out the pairs of a number and the nearest greater number to its right in an array. Example: given [1,2,5,2,6], print out (1,2), (2,5), (5,6), (2,6)
implement sqrt without using math libray
(a) first, write a function to calculate the hamming distance between two binary numbers (b) write a function that takes a list of binary numbers and returns the sum of the hamming distances for each pair (c) find a solution for (b) that works in O(n) time.
Two people are each stuck on their own island, connected by a ferryman with a lockable box. Each person has their own lock and key, but can't send the key along with the box. One person wants to send the other a diamond, but it must be placed into the box and locked or it will be stolen by the ferryman. How do you send the diamond without the ferryman stealing it?
You are in a room with 100 lights, initially all off. If you first toggle every light, then every second, and so forth up to 100, which lights will be on at the end?
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