+-----------+ | 1 | 2 | 3 | +-----------+ | 4 | 5 | 6 | +-----------+ | 7 | 8 | 9 | +-----------+ | * | 0 | # | +-----------+ +---+ | U | +---+ +---+ +---+ +---+ | L | | S | | R | +---+ +---+ +---+ +---+ | D | +—+ Input String: "180*", output is the number of minimum operations needed to dial the input */ 2)How do you test login page?
Find if a word is anagram (e.g. ana is an anagram).
how many scale measurements does it take to know which ball out of 8 balls weighs more? Then how many does 28 balls take?
If water in a well rises 2 feet each day and falls 1 foot each night, how long til the water reaches the top of a 10 foot well
In puzzle test , a small town, there are three temples in a row and a well in front of each temple. A pilgrim came to the town with certain number of flowers. Before entering the first temple, he washed all the flowers he had with the water of well. To his surprise, flowers doubled. He offered few flowers to the God in the first temple and moved to the second temple. Here also, before entering the temple he washed the remaining flowers with the water of well. And again his flowers doubled. He offered few flowers to the God in second temple and moved to the third temple. Here also, his flowers doubled after washing them with water. He offered few flowers to the God in third temple. There were no flowers left when pilgrim came out of third temple and he offered same number of flowers to the God in all three temples. What is the minimum number of flowers the pilgrim had initially? How many flower did he offer to each God?
Implement a class that can calculate the running average of a stream of input numbers up to a maximum of N numbers.
First, a mathematic question, asking about a card game with how many possible way for the combination based on the rules it given. Second, let you to print out all the combination of 3 digit numbers with no duplicate, ex. 012, 013, ....123, 124, 125...
Intersection of n sets without using a hash table.
Get numeric number out of a roman string, linear time Given: mapping I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, M = 1000 Input/Output: II = 2, III = 3, IV = 4 VI, VII, VIII IX = 9 XL = 40, XLIX = 49
Getting maximum and minimun number was not difficult but getting less than n comparison was tricky.
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