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  1. Prepare
  2. Python
  3. Basic Data Types
  4. Finding the percentage
  5. Discussions

Finding the percentage

  • wintermute3jane
     + 23 comments

    I was making it more difficult than it needed to be. I almost threw my computer into the street after I solved the problem with three lines of code.

    # Import decimal
from decimal import Decimal


if __name__ == '__main__':
    n = int(input())
    student_marks = {}
    for _ in range(n):
        name, *line = input().split()
        scores = list(map(float, line))
        student_marks[name] = scores
    query_name = input()


# Extract the values into a list: query_scores
query_scores = student_marks[query_name]

# Sum the scores in the list: total_scores
total_scores = sum(query_scores)

# Convert the floats to decimals and average the scores: avg
avg = Decimal(total_scores/3)

# Print the mean of the scores, correct to two decimals
print(round(avg,2))