day2-part2-take6.py

# Open the file and read the strategy guide
with open('strategy_guide.txt') as file:
    strategy_guide = [line.strip() for line in file]

# Define the score for each shape
SHAPE_SCORES = {'R': 1, 'P': 2, 'S': 3}

# Define the score for each outcome
OUTCOME_SCORES = {'X': 0, 'Y': 3, 'Z': 6}

# Initialize the total score to 0
total_score = 0

# Loop through each pair of characters in the strategy guide
for guide in strategy_guide:
    # Split the guide into two values
    opponent_choice, our_choice = guide.split()

    # Choose the shape that will allow us to achieve the desired outcome
    if our_choice == 'X':
        # We need to lose the round, so choose the shape that will lose to the opponent's shape
        if opponent_choice == 'R':
            # The opponent chose Rock, so we need to choose Scissors
            our_shape = 'S'
        elif opponent_choice == 'S':
            # The opponent chose Scissors, so we need to choose Paper
            our_shape = 'P'
        else:
            # The opponent chose Paper, so we need to choose Rock
            our_shape = 'R'
    elif our_choice == 'Y':
        # We need to draw the round, so choose the shape that will draw with the opponent's shape
        if opponent_choice == 'R':
            # The opponent chose Rock, so we need to choose Rock
            our_shape = 'R'
        elif opponent_choice == 'S':
            # The opponent chose Scissors, so we need to choose Scissors
            our_shape = 'S'
        else:
            # The opponent chose Paper, so we need to choose Paper
            our_shape = 'P'
    else:
        # We need to win the round, so choose the shape that will win against the opponent's shape
        if opponent_choice == 'R':
            # The opponent chose Rock, so we need to choose Paper
            our_shape = 'P'
        elif opponent_choice == 'S':
            # The opponent chose Scissors, so we need to choose Rock
            our_shape = 'R'
        else:
            # The opponent chose Paper, so we need to choose Scissors
            our_shape = 'S'

    # Calculate the score for the round
    round_score = SHAPE_SCORES[our_shape] + OUTCOME_SCORES[our_choice]

    # Add the score for the round to the total score
    total_score += round_score

# Print the total score
print(total_score)