Coin game: board divided in quarters. A coin rests in each spot. You do not know their original configuration. In each turn, you can choose flip any number of coins. Specify a sequence of turns that guarantees that at some point all coins will be facing the same direction. Second question: between each of your turns, the board will be rotated an arbitrary amount (90, 180, 270 degrees). Specify a sequence of moves that guarantees that at some point all coins will be facing the same direction.
Write a function that multiples to integers without using the multiplication symbol
who discovered system crashes
1. Reverse linked list. 2. Implement LRU cache 3. Implement reader writer lock
Piping designs for sterile processing systems?
Given a time of day, figure out the angle between the hour and minute hands of a clock.
Find the heavier ball of the given 12 pool balls using a weight balance that can be used just 3 times.
SQL-Query using Self-Joins
How would deal with a difficult guest?
Write this function (on a Google doc): /*How many ways can you make change given the following denominations? ie, if numCentsToMake is 6 and denominations is [25, 10, 5, 1], then it should return 2: either a nickel and a penny or 6 pennies.*/ int numWaysToMakeChange(int numCentsToMake, int[] denominations)
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