Alice and bob problem.
Thus, we print Alice on a new line.
Alice and bob problem. Otherwise, output "Bob ".
Alice and bob problem They live on opposite coasts, communicate mainly by telephone, and use their computers to transact business over the telephone. Turn 3. You do not know what type either of them is. facebook. HHTT. com/qmunitytechTwitter: https://twitter. In this case, Alice gets 0 points and Bob gets 2 points. Alice has a birthday today, so she invited home her best friend Bob. Dec 4, 2024 · Alice & Bob’s first white paper explains how cat qubits address the quantum computing field’s issue of scaling and unveils their roadmap. Who is most likely to win? Answer Since Alice and Bob, both are playing to win the game and both are equally clever then "Alice has to think about Bob's move means options available for Bob once Alice is done with the move, What Bob will pick (Bob is equally clever and tries to leave Alice with minimum values to be chosen from) and then what Alice will choose. Similarly, Bob is unhappy if Alice ran strictly more than twice his distance, and happy otherwise. In this note we calculate the first 3 moments of the random variable “Alice’s Score minus Bob’s Score” and then use an Edgeworth expansion appears that Alice and Bob face an impossible task. Thus, we print Alice on a new line. 1 day ago · The problem was used in the following contest: Moscow Pre-Finals Workshop 2020. Bob picked the number $$$3$$$. Day 6. Suddenly, Alice says \At least one of us is a Knave. * Type 3: Can be traversed by both Alice and Bob. Can you solve this real interview question? Alice and Bob Playing Flower Game - Alice and Bob are playing a turn-based game on a circular field surrounded by flowers. Score is 3, 0. Stage 22: Shaanxi D. For ans[i] != -1, It can be shown that ans[i] is the leftmost building Alice and Bob are using the GGH cryptosystem, which involves working with lattices. The points are numbered clockwise, from 1 to 12. A surface code would need a 30 X 30 square array of physical qubits, but now you only need one row of this. The rating for Alice's challenge is the triplet a = (a[0], a[1], a[2]), and the rating for Bob's challenge is the triplet b = (b[0], b[1], b[2]). Alice picked the range $$$[2, 2]$$$. At the same time Bob looks due west from his house and sees the same airplane. Apr 8, 2024 · Today’s puzzle was originally posted by Daniel Litt on Twitter. g. Oct 28, 2024 · Interactive Python Demo: Bob and Alice in Cryptoland In the appendix of this article, you will find a link to an interactive Python demonstration titled Bob and Alice in Cryptoland . e. Both start on point 12. Alice picked the range $$$[1, 3]$$$. Otherwise, output "Bob ". It is necessary to solve the questions while watching videos, nados. Then Alice put the range $$$[2, 3]$$$ back to the set, which after this turn is the only range in the set. " What are Alice and Bob? Solution: Consider four possible cases, as shown in the four rows of this table. In the first test case, an example of the game is shown below: Alice chooses to not swap wallets with Bob in step 1 of her move. Alice send an encrypted message "112" to Bob. The flrst step is for Alice and Bob to agree on a large prime p and a nonzero integer g modulo p. Bob can remove either prime from the set, and then Alice can remove the remaining prime. THHH. com/qmunity. Can you solve this real interview question? Divisor Game - Alice and Bob take turns playing a game, with Alice starting first. ” During each move, either Alice or Bob (the player whose turn is the current) can choose two distinct integers x and y from the set, such that the set doesn't contain their absolute difference |x - y|. Then Alice swaps $$$3$$$ and $$$1$$$: $$$13$$$ and Bob deletes $$$3$$$, so the answer is Alice and Bob. A reviewer rates the two challenges, awarding points on a scale from 1 to 100 for three categories: problem clarity, originality, and difficulty. For each chocololate bar the time, needed for the player to consume it, is known (Alice and Bob eat them with equal speed). We refer to the cell in row $$$i$$$ and column $$$j Alice and Bob sit across each other at a circular table. This engaging visual tool illustrates the RSA encryption and decryption process using a familiar narrative: Bob and Alice exchanging secure messages. Alice and Bob are playing a game Jun 1, 2020 · Alice and Bob each created one problem for HackerRank. The problem facing Alice and Bob in Bennett, Brassard, and Roberts’ narrative is that a seemingly secure channel for communication is rendered “imperfect in various ways: transmission errors can occur, and partial information can leak to Eve, the eavesdropper, who also can modify the transmissions arbitrarily. Alice and Bob Statistics Statement Submit Custom Test Back to the contest; Submit When Alice finishes, Bob starts his journey. Problem 1: There are two native islanders, named Alice and Bob, standing next to each other. The game proceeds as follows: 1. We define the rating for Alice's challenge to be the triplet , and the rating for Bob's challenge to be the triplet . ” Dec 15, 2024 · The problem was used in the following contest: Super League of Chinese College Students Algorithm Design 2022 (1) 2022 Multi-University Training Contest 1 Dec 31, 2024 · Xi'an Invitational 2023 A. Can you solve this real interview question? Remove Max Number of Edges to Keep Graph Fully Traversable - Alice and Bob have an undirected graph of n nodes and three types of edges: * Type 1: Can be traversed by Alice only. Bob has an index 𝒊𝒊. For each test case, if Alice will win the game, output "Alice". For example, on a given day. In the first test case, Alice can choose $$$i=1$$$ since $$$a_1=2 \ge mx=0$$$. For each HH in the sequence of flips, Alice gets a point; for each HT, Bob does, so e. LeetCode Solutions in C++20, Java, Python, MySQL, and TypeScript. Because Bob is left without a final move, Alice will always win. The angle of elevation of the airplane is from Alice's position and from Bob's position. Today’s quantum computers don’t work. Bob wants to know whether the 𝑖𝑖th bit of Alice is 0 or 1. com for a richer experience. The Diffie-Hellman algorithm is a key exchange protocol that allows two parties, in this case, Alice and Bob, to establish a shared secret key \(K_{AB}\), which can then be used for secure communication (e. Alice chooses the prime number and deletes the numbers and from the set, which becomes . Score is 2, 0. Determine whether she is happy or not. If you've seen these problems, a virtual contest is not for you - solve these problems in the archive. Question: Problem III (20 marks) Both Alice and Bob have asymmetric keys as: Alice - Pubic key (29, 91), Private key (5, 91); Bob - Pubic key (173, 323), Private key (5, 323). Alice and Bob play 5-in-a-row game. Jul 28, 2021 · "Facebook recently shut down two of its AI robots named Alice & Bob after they started talking to each other in a language they made up," reads a graphic shared July 18 by the Facebook group Aug 2, 2017 · There has been a real flurry of interest in the last couple of days in a couple of chatbots (reassuringly named "Bob" and "Alice") developed by Facebook AI Research. Reports have been flying In 1983, Blum invented a backstory about a troubled relationship between Alice and Bob, writing, "Alice and Bob, recently divorced, mutually distrustful, still do business together. Look at the explanation in the insert. The rating for Alice’s challenge is the triplet a = (a[0], a[1], a[2]), and the rating for Bob’s challenge is the triplet b = (b[0], b[1], b[2]). They have placed n chocolate bars in a line. Alice picked the range $$$[2, 3]$$$. instagram. 0 s Memory Limit: 512 MB EC Online (I) F. You can output each letter in any case. , Rijndael encryption). Initially, there is a number n on the chalkboard. First, output the integer $$$\alpha$$$ — the maximum possible size of Alice's plot, if Bob does not give her any fountain (i. Alice and Bob Longway Let’strytofindthed v = numberofAlicemoves Bobmoves,whichtheonetokenonvertexv willgive Oct 29, 2020 · The problem reads: “Alice and Bob can complete a job in two hours. In the first test case Alice has to swap $$$1$$$ and $$$2$$$. • This requires Ω(𝑚𝑚)space. Alice and Marks. Alice and Bob Input le: standard input Output le: standard output Time limit: 1 second Memory limit: 512 mebibytes Alice and Bob will play a game by alternating turns with Alice going rst. Given an array edges where edges[i] = [typei, ui, vi] represents a bidirectional In the first test case, Alice and Bob can each take one candy, then both will have a total weight of $$$1$$$. Bob wins. from publication: The dangerous path towards your own cryptography method | Would you like to have your own cryptography method? Experts say May 8, 2023 · Alice: "Bob and Chris have different numbers" Bob (thinking): with that extra information I would also know my number if the sum or difference of the two numbers I see were equal to Chris's number. tech/ Facebook: https://www. * Replacing the number n on the chalkboard with n - x. (And Alice's number is not zero. The white paper outlines a clear Alice and Bob each created one problem for HackerRank. Dec 31, 2024 · GP of Moscow A. Jul 31, 2024 · In this HackerRank Alice and Bob’s Silly Game problem solution, Alice and Bob play G games. 7. )" Alice and Bob take turns eating them, with Alice starting first: In her turn, Alice chooses and eats any remaining cake whose tastiness is strictly greater than the maximum tastiness of any of the cakes she's eaten before that. Alice and Bob are playing a game. Alice and Bob Description Alice have a friend Bob, they like play games very much, They like to play games is to grab the stone, this classic game they play much times, so today they intend to make the classic reproduction, playing an overnight grab stone, they are two people who like innovation, so this time they got a new game is This is an interactive problem. Return "Alice" if Alice will win, "Bob" if Bob will win, or "Tie" if they will end the game with the same score. Alice and Bob each created one problem for HackerRank. If you just want to solve some problem from a contest, a virtual contest is not for you - solve this problem in the archive. This reduces correction to a 1D problem. for the sequence THHHT Alice gets 2 points and Bob gets 1 point. Tomorrow, Alice will take $$$10$$$ and Bob will take $$$6$$$. Alice is happy if she scored at least twice the marks of Bob’s score. Mar 22, 2024 · I saw this interesting math problem from a coworker and decided to make a post discussing the computation. 𝑛𝑛 𝑚𝑚. On each player's turn, that player makes a move consisting of: * Choosing any x with 0 < x < n and n % x == 0. Alice starts to eat chocolate bars one by one from left to right, and Bob — from right to left. Alice and Bob tie. Her first show gathered a grand total of two spectators: Alice and Bob. They have a directed acyclic graph, such that each edge u !v satis es u < v. Jan 3, 2025 · The 1st Universal Cup. The objective of the game is to end with the most stones. - yular/CC--InterviewProblem Diffie-Hellman does have a weakness: If an intruder Charlie can intercept and resend email between Alice and Bob, then the intruder can pretend to be Bob for Alice and pretend to be Alice for Bob, substituting his own y C and tricking each of Alice and Bob into having a shared secret key with him. Bob: "Alice and Chris have different numbers. In the fifth query, Alice and Bob are already in the same building. Alice sends Bob a public key in the form of a lattice generated by a given matrix, while Bob sends Alice an encrypted message vector. To make the process of sharing the remaining fruit more fun, the friends decided to play a game. 8. You are also given another array queries where queries[i] = [ai, bi Question: (1 point) Alice and Bob are conducting Diffie-Hellman key exchange with the parameters p=127 and α=3. The value of i t h i^{th} i t h coin is C i C_i C i . To describe it, two people were invented called Alice and Bob. And now they are ready to start a new game. Problem. Suppose Alice selectsprivate key a=96 and Bob selects private key b=98. The second line contains n integer numbers c 1, c 2, , c n (1 ≤ c i ≤ 10 6) — colors of the cars that Alice and Bob will encounter in the order of their appearance. It is supported only ICPC mode for virtual contests. Although Alice and Bob were invented with no reference to their personality, authors soon began adding colorful descriptions. She wonders if she can put cross in such empty cell that she wins immediately. Run. 𝑂𝑂(1/𝑚𝑚) points Aug 13, 2017 · Alice and Bob can complete a job in 2 hours. Nov 24, 2023 · In the third query, Alice cannot meet Bob since Alice cannot move to any other building. Codeforces. On their turn, a player must move from the current vertex to a neighboring vertex that has not yet been visited by anyone. The total number of stones across all the piles is odd, so there are no ties. Also, Alice's number is not twice Chris's. Alice and Bob make the values of p and g public The first line contains two integer numbers n and A (1 ≤ n ≤ 10 5, 1 ≤ A ≤ 10 6) – number of cars and the color chosen by Alice. Alice takes the first turn. 9. This is the final score, and so the output is 3 0. Each problem is reviewed and rated according to clarity, originality and difficulty. Then Alice put the range $$$[2, 2]$$$ back to the set. • Bob can query the hyperplane excluding 𝑖𝑖-th point to find out Alice’s bit. There are ways to fix this problem. For ans[i] != -1, It can be shown that ans[i] is the leftmost building Think, for instance, of the “cat qubits” we use at Alice & Bob. Flip a fair coin 100 times—it gives a sequence of heads (H) and tails (T). After resolving the IP address for the bank’s URL, Alice sets up a TCP connection at port 443 for (presumably) Bob’s IP address. Note that on the first turn, she can choose any cake. Alice and Bob really are quantum—a professor at the University of Washington has used two separate remote cameras, named Alice and Bob, to test the theory of non-locality and its potential for time travel, by attempting to receive a message before it's sent. V. Bob wants to maximize the score. 6. Jan 9, 2025 · Alice and Bob Statistics Statement Submit Custom Test The problem was used in the following contest: The 1st Universal Cup. In turns they put either crosses or noughts, one at a time. Alice immediately took an orange for herself, Bob took an apple. Score is 0 Alice has scored XX marks in her test and Bob has scored YY marks in the same test. In the second test case, Bob can't change costs. in the $$$3$$$-rd move Alice again has to perform the $$$1$$$-st A collection of solutions for Hackerrank data structures and algorithm problems in Python - dhruvksuri/hackerrank-solutions Jul 3, 2024 · Step 3: Alice and Bob compute public values Alice: x =(9^4 mod 23) = (6561 mod 23) = 6 Bob: y = (9^3 mod 23) = (729 mod 23) = 16 Step 4: Alice and Bob exchange public numbers Step 5: Alice receives public key y =16 and Bob receives public key x = 6 Step 6: Alice and Bob compute symmetric keys Alice: ka = y^a mod p = 65536 mod 23 = 9 Download scientific diagram | Alice and Bob's problem. * Type 2: Can be traversed by Bob only. , all fountains will remain on Bob's plot). Alice wins. In the city in which Alice and Bob live, the first metro line is being built. Now there are two primes left, and . a) What is Alice's public key?b) What is Bob's public key?c) What is the shared secret?Note: You can earn partial credit on this problem. Hence, Alice wins. They have a playing field of size 10 × 10. It all comes down to an idea for coding messages, the RSA protocol. Alice, being a good friend of Bob, agrees to lend enough money to Bob so that he can buy the toy. One day Alice looks due north from her house and sees an airplane. Also, if a player cannot make a move, they lose the Can you solve this real interview question? Stone Game - Alice and Bob play a game with piles of stones. Alice and Bob Statistics Statement Submit Custom Test Back to the contest; Submit If you just want to solve some problem from a contest, a virtual contest is not for you - solve this problem in the archive. Now Bob needs to find a way to commute to the Alice's home. Alice and Bob play a game involving a circle whose circumference is divided by 12 equally-spaced points. Testcase 3: The given string is "ABABB". In the kitchen they found a large bag of oranges and apples. You are also given another array queries where queries[i] = [ai, bi In the third query, Alice cannot meet Bob since Alice cannot move to any other building. In this case, Alice gets 2 points and Bob gets 0 points. Alice has N N N coins. In the third test case, both Alice and Bob can take two candies, one of weight $$$1$$$ and one of weight $$$2$$$. Eve prepared a1+a2+a3+a4 jokes to tell, grouped by their type: type 1: both Alice and Bob like them; type 2: Alice likes them, but Bob doesn't; type 3: Bob likes them, but Alice doesn't; Turn 1. So the score will be equal to $$$(15 + 10) - 12 = 13$$$, since Alice will take $$$15$$$, Bob will take $$$12$$$, and Alice — $$$10$$$. Bob wants to send a message to Alice, a message that only Alice will be able to read. Bob and Charlie can complete the same job in 4 hours. Index Problem: Alice has 𝒎𝒎bits. Bob picked the number $$$1$$$. In the second test case, any division will be unfair. If Alice ran 500 500 500 meters and Bob ran 240 240 240, Alice would be happy and Bob would be unhappy. The total score will be equal to $$$10 - 6 = 4$$$, and it's the minimum possible. Alice puts crosses and Bob puts noughts. pepcoding. Alice Bob Knight Knight Knight Knave Knave Knight For each test case, output "Alice" if Alice wins, "Bob" if Bob wins, and "Draw" if neither player can secure a victory. Their basic building blocks, qubits, are too fragile. The score of the game is the total number of coins Bob collects. Alice and Bob take turns, with Alice The problem facing Alice and Bob in Bennett, Brassard, and Roberts’ narrative is that a seemingly secure channel for communication is rendered “imperfect in various ways: transmission errors can occur, and partial information can leak to Eve, the eavesdropper, who also can modify the transmissions arbitrarily. Alice has scored X X X marks in her test and Bob has scored Y Y Y marks in the same test. Alice moves clockwise and Bob, counterclockwise. Alice and Bob Statistics Statement Submit Custom Test Back to the contest; Submit Can you solve this real interview question? Find Building Where Alice and Bob Can Meet - You are given a 0-indexed array heights of positive integers, where heights[i] represents the height of the ith building. They have exchanged their public key and keep their private key safely. Example 1: Input: values = [1,2,3,7] Output Alice and Bob decided to eat some fruit. Alice wants to minimize the score. Can you solve this real interview question? Find Building Where Alice and Bob Can Meet - You are given a 0-indexed array heights of positive integers, where heights[i] represents the height of the ith building. Each player starts at some vertex. How long will the job take if Alice, Bob, and Charlie work together? Assume each person works at a constant rate, whether Jun 28, 2023 · The problem statement is-Eve is a beginner stand-up comedian. For example, "alIcE", "Alice", "alice" will all be considered identical. Paris, France – December 4 – Alice & Bob, a global frontrunner in the race for fault-tolerant quantum computing, has unveiled its white paper and five-year roadmap. QEC then only has to correct one remaining noise dimension. In 1983, Blum invented a backstory about a troubled relationship between Alice and Bob, writing, "Alice and Bob, recently divorced, mutually distrustful, still do business together. After that Bob deletes the last digit: $$$31$$$. So let’s see, and at the same time I’ll explain why Alice & Bob is called Alice & Bob. How long will the job take if Alice, Bob, and Charlie work together? Assume each person works at a constant rate, whether working alone or working with others. The circle represents the field, and there are x flowers in the clockwise direction between Alice and Bob, and y flowers in the anti-clockwise direction between them. If Alice wins, print Alice; otherwise, print Bob. " Mar 4, 2022 · Bob and Alice’s conversation illustrates the lack of tolerance for ambiguity in digital systems. Pankratiev, Grand Prix of Moscow; RuCode 2020 Division A+B Championship Round 5 days ago · Problems; Submissions; Hack! Blogs; Time Limit: 3. Turn 2. Let us imagine what would happen if we lifted words or symbols out of place and rearranged the order without having a suitable protocol to give technical instructions as to how to decode the data. THHT. com For this particular problem, the intuitive first step might be to consider a brute-force approach, where for every query, we try to step through each building between Alice and Bob until we find a common meeting point if one exists. HTHT. There are an even number of piles arranged in a row, and each pile has a positive integer number of stones piles[i]. May 26, 2023 · Assume Alice and Bob play optimally. Alice is the server, and Bob is the receiver. RuCode 2020 Championship XX Open Cup named after E. Jul 31, 2024 · In this HackerRank Compare the Triplets problem solution Alice and Bob each created one problem for HackerRank. com/qmunitytechReddit: qmunitytech RuCode 2020 Division A+B Championship Round, Sunday, April 26, 2020 Problem A. Problem A. Alice and Bob Statistics Statement Submit Custom Test Attachments 1 day ago · The 1st Universal Cup. The solutions of algorithm problems from Leetcode, Interview Street and so on. Instagram: https://www. Which of the following is closest to the airplane's altitude, in miles? Alice wants to divide the field in such a way as to get as many cells as possible. Since Alice and Bob are busy with preparing food to the New Year's Eve, they are asking you to find out the maximum number of ornaments that can be used in their beautiful Christmas Tree! It is guaranteed that it is possible to choose at least $$$6$$$ ($$$1+2+3=6$$$) ornaments. Your friends Alice and Bob practice Problem A. In the fourth query, Alice and Bob can move to building 5 since heights[3] < heights[5] and heights[4] < heights[5]. . Disturbed by our noisy classical world, they run into errors: they “ decohere ”. Score is 1, 0. You are also given another array queries where queries[i] = [ai, bi Alice and Bob like games. In a turn of the game, Alice moves 5 points clockwise and Bob moves 9 points counterclockwise. After Alice's operation, $$$a=[0,1]$$$ and $$$mx=2$$$. If Alice ran 200 200 200 meters and Bob ran 500 500 500, Alice would be unhappy but Bob would be happy. We are given , so . Bob can not do any operation. In the second test case Alice can swap $$$3$$$ and $$$1$$$: $$$312$$$. 2 Apr 10, 2017 · Alice and Bob each created one coding problem for HackerRank. Alice and Bob Statistics Statement Submit Custom Test Back to the contest; Submit In the Alice HH vs Bob HT problem, Alice and Bob flip a sequence ofn coins, with Alice scores a point whenever “HH” appears and Bob scoring a point whenever “HT” appear. Our task is to decrypt this message using Alice's public key and lattice reduction techniques like the LLL algorithm. Given the value of N for each game, print the name of the game’s winner on a new line. In the second test case of example, in the $$$1$$$-st move Alice has to perform the $$$1$$$-st operation, since the string is currently a palindrome. Coin Flipping Problem Flip a fair coin 100 times—it gives a sequence of heads (H) and tails (T). Bob wants to buy a toy whose value is X X X. Alice and Bob take turns, with Alice going first. It was a brilliant insight of Di–e and Hellman that the di–culty of the discrete logarithm problem for F⁄ p provides a possible solution. The experiment hasn't yielded results so far, but it's telling. The first and only line of input contains two space-separated integers X, YX,Y — the marks of Alice and Problem. If Valerie votes for Alice but not Bob, or Bob but not Alice, she has no principled way to choose between these options, as she prefers Alice-committees and Bob-committees equally. Stage 22: Shaanxi; Jan 5, 2025 · Alice and Bob Statistics Statement Attachments The problem was used in the following contest: The 2023 ICPC Asia East Continent Online Contest (I) Submit. Please consume this content on nados. He also performs the moves to reach $$$(2, m)$$$ and collects the coins in all cells that he visited, but Alice didn't. However, Alice wants to lend as few coins as possible to Bob. Programming competitions and contests, programming community. After that Bob removes the last digit, $$$1$$$, so the answer is $$$2$$$. Bob wants to keep ownership of all the fountains, but he can give one of them to Alice. In current match they have made some turns and now it's Alice's turn. Alice and Charlie can complete the same job in 3 hours. They start with a If Valerie votes for neither Alice nor Bob in hopes that other voters will prefer one over the other, she risks electing her second choice committee cde. 5. HTTH. Use them to solve the following questions: 1. During each move, either Alice or Bob (the player whose turn is the current) can choose two distinct integers x and y from the set, such that the set doesn't contain their absolute difference |x - y|. There is $$$n\times n$$$ grid, initially empty. in the $$$2$$$-nd move Bob reverses the string. They will now play the “game of coins”! The “game of coins” is simple: they have access to a huge pile of circular coins of the same size and, in turns, they place a coin on the table. Perhaps you’re wondering how that works. Alice spends $$$0$$$ dollars while Bob spends $$$1$$$ dollar. If a person is in building i, they can move to any other building j if and only if i < j and heights[i] < heights[j]. Then this player adds integer |x - y| to the set (so, the size of the set increases by one). May 16, 2020 · Key elements of ClientHello. In his turn, Bob chooses any remaining cake and eats it. You can output each letter in any case (lowercase or uppercase). In this case, Alice gets 1 point and Bob gets 1 point. Alice and Bob live miles apart. vibwmyewhgclacnskkjfkyjttodanchotgoroonwprdpghlspxlm