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Challenge 139: Rock, Paper, Scissors

curriculum/challenges/english/blocks/daily-coding-challenges-python/6925e2068081f40f549ced1d.md

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--description--

Given two strings, the first representing Player 1 and the second representing Player 2, determine the winner of a match of Rock, Paper, Scissors.

  • The input strings will always be "Rock", "Paper", or "Scissors".
  • "Rock" beats "Scissors".
  • "Paper" beats "Rock".
  • "Scissors" beats "Paper".

Return:

  • "Player 1 wins" if Player 1 wins.
  • "Player 2 wins" if Player 2 wins.
  • "Tie" if both players choose the same option.

--hints--

rock_paper_scissors("Rock", "Rock") should return "Tie".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(rock_paper_scissors("Rock", "Rock"), "Tie")`)
}})

rock_paper_scissors("Rock", "Paper") should return "Player 2 wins".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(rock_paper_scissors("Rock", "Paper"), "Player 2 wins")`)
}})

rock_paper_scissors("Scissors", "Paper") should return "Player 1 wins".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(rock_paper_scissors("Scissors", "Paper"), "Player 1 wins")`)
}})

rock_paper_scissors("Rock", "Scissors") should return "Player 1 wins".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(rock_paper_scissors("Rock", "Scissors"), "Player 1 wins")`)
}})

rock_paper_scissors("Scissors", "Scissors") should return "Tie".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(rock_paper_scissors("Scissors", "Scissors"), "Tie")`)
}})

rock_paper_scissors("Scissors", "Rock") should return "Player 2 wins".

js
({test: () => { runPython(`
from unittest import TestCase
TestCase().assertEqual(rock_paper_scissors("Scissors", "Rock"), "Player 2 wins")`)
}})

--seed--

--seed-contents--

py
def rock_paper_scissors(player1, player2):

    return player1

--solutions--

py
def rock_paper_scissors(player1, player2):
    if player1 == player2:
        return "Tie"
    
    if (player1 == "Rock" and player2 == "Scissors") or \
       (player1 == "Paper" and player2 == "Rock") or \
       (player1 == "Scissors" and player2 == "Paper"):
        return "Player 1 wins"
    else:
        return "Player 2 wins"