10 ropes with red and blue end. red end can only connect blue end. what is the expected value of cycles?
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The question was the following. I'm rephrasing the question to make it clear for everyone to understand: - You are going on a one-way flight trip that includes billions of layovers. - You have 1 ticket for each part of your trip (i.e: if your trip is from city A to city C with a layover in city B, then you will have 1 flight ticket from city A to city B, and 1 flight ticket from city B to city C. - Each layover is unique. You are not stopping twice in the same city. - You forgot the original departure city. - You forgot the final destination city. - All the tickets you have are randomly sorted. Question are: - Design an algorithm to reconstruct your trip with minimum complexity. - How would you improve your algorithm. Example: - randomly sorted: New York->London San Francisco-> Hong Kong Paris->New York London->San Francisco - sorted: Paris->New York New York->London London->San Francisco San Francisco-> Hong Kong
Given two lowercase strings, S1 and S2, sort S1 in same order as S2. If a character in S1 doesn't exist in S2, put them at the end. If S1 is "program" and S2 is "grapo", then return "grrapom".
Implement a method for a Fibonacci sequence where instead of adding the last 2 elemenT's you add the last n elements. For n=3. 1 1 1 3 5 9...
Write a function to tell if two line segments intersect or not.
Given a sequence of numbers (34128) and an input map such as a dial pad on a phone (2->[a,b,c], 3->[d,e,f], 4->[g,h,i]) write an algorithm to return all possible words from the sequence. E.g. Input: 232 Output: [ada, adb, adc, aea, aeb, aec, afa, afb, afc, bda, bdb, bdc, bea, beb, bec, bfa, bfb, bfc, cda, cdb, cdc, cea, ceb, cec, cfa, cfb, cfc]
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?
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...
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