Given a decimal number and a base N (which is between 2 and 35), convert the decimal number to the base-N number. For base more than 9, use uppercase letter…
Given a 32 bit integer, reverse all the 0/1 bits so that the first bit becomes the last one, the second bit becomes the one before the last one...etc. Sample…
Given a pattern and a list of words, check whether the words match the pattern. Sample Input: pattern = "ABBA"words = "hello kitty kitty hello" Sample Output: True In the…
Given two strings, check whether one string could be rotated so that it matches the second string. Every time rotating the string, the first letter becomes the last one, the…
Given a positive number, find out all the prime numbers under it. Sample Input: 27 Sample Output: There are 9 prime numbers under 27:2, 3, 5, 7, 11, 13, 17,…
On a large chessboard there are two groups of chesses. One group will move horizontally from west to east ( 0 degree direction), and the other group will move vertically…
To measure traffic on a highway, detectors are used for entrance (ON), exit (OFF) and main road (MAIN). Each detector is installed on a location away from the others, and…
Reorder the following words by special rules: White, Orange, Blue, Green, Yellow, Purple, Pink, and Black. Each rule specifies one word must be beside another one. After all rules are…