A writeup of the Hack The Box challenge “Evaluative” with very easy difficulty

Evaluative (very easy)

CHALLENGE DESCRIPTION

A rogue bot is malfunctioning, generating cryptic sequences that control secure data vaults. Your task? Decode its logic and compute the correct output before the system locks you out!

The task is to evaluate the polyonomy from the:

a₀ + a₁·x + a₂·x² + a₃·x³ + ... + a₈·x⁸ And the x value.

In the example:

Input: Coefficients: 1 -2 3 -4 5 -6 7 -8 9 X = 5

The assignment: Write code that evaluates the polyonomy. We can achieve this with a simple loop or with enumerate .

# take in the number
coeffs = list(map(int, input().split()))

# Read value X
x = int(input())

# Calculate the polyonomy value
result = 0
for i, a in enumerate(coeffs):
    result += a * (x ** i)

# Print the result
print(result)

Running this code: