Game of stones hackerrank solution

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Alice and Bob are playing the game of Nim with piles of stones with sizes. If Alice plays first, she loses if and only if the ' xor sum' or 'Nim sum' of the piles is zero, i. Since Bob already knows who will win assuming optimal play , he decides to cheat by removing some stones in some piles before the game starts. However, to reduce the risk of suspicion, he must keep at least one pile unchanged. Your task is to count the number of ways Bob can remove the stones to force Alice into losing the game. Since the number can be very large, output the number of ways modulo.

Game of stones hackerrank solution

Two players called and are playing a game with a starting number of stones. Player always plays first, and the two players move in alternating turns. The game's rules are as follows:. Given the starting number of stones, find and print the name of the winner. Each player plays optimally, meaning they will not make a move that causes them to lose the game if a winning move exists. For example, if , can make the following moves:. Complete the gameOfStones function in the editor below. It should return a string, either First or Second. The first line contains an integer , the number of test cases. Each of the next lines contains an integer , the number of stones in a test case. On a new line for each test case, print First if the first player is the winner. Otherwise print Second. In the sample, we have testcases. If , can't make any moves and loses the game.

All possible moves result in winning.

The one who is not able to make the move loses the game. In other words, the player who removes the last set of stones always wins. No matter 1, 2, or 3 stones you remove, the last stone will always be removed by your friend. Hence, you are not able to make the move. Skip to content.

Please Login in order to post a comment. Hey, i want to say that if guys want to downlad games in arabic language today i have found an amazing site that provide free games in arabic language Wifi4games. This problem describes a game where two players take turns removing stones from a pile, and the goal is to determine the winner based on the initial number of stones. The solution involves analyzing the optimal moves for each player and determining if the first player Player 1 or the second player Player 2 will win. The gameOfStones function needs to consider the different scenarios for each test case and output "First" or "Second" accordingly, based on the optimal moves of the players. The key is to analyze the patterns and conditions that lead to a win for either player. Overall, it's a dynamic programming problem that involves understanding the winning strategies and implementing the logic to determine the winner for each test case. We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies. Sort by recency.

Game of stones hackerrank solution

It is a two-player game that requires players to take turns to move stones from one pile to another. The aim of the game is to end up with all the stones in one pile. It is a great problem that tests your skills in programming logic and problem-solving. In this article, we will be providing you with tips and strategies on how to solve the 'Game of Stones' challenge on HackerRank. The 'Game of Stones' challenge on HackerRank requires players to take turns to move stones from one pile to another. The rules of the game are simple. Each player can take as many stones as they want from one pile and move them to another pile on their turn. The game ends when all the stones are in one pile. The player who ends with the most stones in their pile wins the game. The challenge requires players to develop an algorithm that can determine the best move for each player in the game.

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Solution in python 3. Please read our cookie policy for more information about how we use cookies. Enhance the article with your expertise. Complete Tutorials. Share your suggestions to enhance the article. Contribute your expertise and make a difference in the GeeksforGeeks portal. Since Bob already knows who will win assuming optimal play , he decides to cheat by removing some stones in some piles before the game starts. Each player plays optimally, meaning they will not make a move that causes them to lose the game if a winning move exists. Easy Normal Medium Hard Expert. Next Place K-knights such that they do not attack each other. The game's rules are as follows: In a single move, a player can remove either , , or stones from the game board. Previous Check whether two numbers are in silver ratio.

The one who is not able to make the move loses the game. In other words, the player who removes the last set of stones always wins. No matter 1, 2, or 3 stones you remove, the last stone will always be removed by your friend.

Please read our cookie policy for more information about how we use cookies. Thank you for your valuable feedback! Player always plays first, and the two players move in alternating turns. Improved By :. You can suggest the changes for now and it will be under the article's discussion tab. Create Improvement. Counting Good stones in a river with positive and negative steps. We use cookies to ensure you have the best browsing experience on our website. If , can make any of the following three moves:. The four possible resulting lists of piles is:. Sample Output. Similar Reads. If a player is unable to make a move, that player loses the game. If , removes all stones from the game board, winning the game. Enhance the article with your expertise.