shunfurh
编程介的小学生
采纳率92.7%
2017-01-25 04:36

FOUR QUARTERS

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Description
Four Quarters is a game of chance played with, well, four quarters. Two people, called A and B, each flip two quarters each round. They each gain or lose points each round based on the following tables:

There is no difference between Heads/Tails and Tails/Heads. As you can see, the odds are stacked in Player A's favor. At the beginning of the game, each player has 0 points, and points accumulate as the game progresses. At the
end of the game, whichever player has the most points wins.
You must write a program that determines the probability that Player A will win, Player B will win, or they will tie, after a certain number of rounds. Assume that the coins are fair, i.e. that heads and tails are equally likely.

Input
There is no input file for this problem.

Output
Output a table that lists the probability that Player A will win, B will win, or they will tie, after each round for 1 to 20 rounds. The output for rounds 1 through 3 is given below.
Probabilities must be expressed as a percent, with 4 places after the decimal.

Sample Input

Sample Output

Round A wins B wins Tie
1 43.7500% 18.7500% 37.5000%
2 56.6406% 22.2656% 21.0938%
3 62.3535% 22.7051% 14.9414%

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