Someone can go up on stairs from one or two steps, how many different there is to go up on a stairs with n steps.
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Find all (english word) substrings of a given string. (every = every, ever, very)
Write a program to find (x^y) % z
Fibonacci numbers... haha.
Find the largest 100 numbers out of a list of a trillion unsorted numbers
Write a code to check whether partially filled sudoku is proper or not
if we had a list of n nodes, what are the maximum number of edges there can be for a directed acyclic graph?
N pots, each with some number of gold coins, are arranged in a line. You are playing a game against another player. You take turns picking a pot of gold. You may pick a pot from either end of the line, remove the pot, and keep the gold pieces. The player with the most gold at the end wins. Develop a strategy for playing this game.
Capitalize 2nd, 4th, 8th, 16th, … letters in a string input : letters in a string output: lEtTers in a stRing
Two trains traveling in the opposite direction with x and y miles per hour , they are 100 miles apart.Where would they meet ? formula?
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