How can I make this code more efficient?(SPAMCLAS)

import sys

def query(input, n, weight, bias):
    ans = input

    for layern in range(n):
        ans = ans * weight[layern] + bias[layern]
    return ans

def read():
    return sys.stdin.readline().strip()

def readTestCase():

    [n, minX, maxX] = read().split(' ')

    n = int(n)
    minX = int(minX)
    maxX = int(maxX)
    weights = []
    biases = []
    for j in range(n):
        a = read().split(' ')
        weights.append(int(a[0]))
        biases.append(int(a[1]))




    spammers = 0
    nonspammers = 0
    for i in range(minX, maxX+1):



        y = query(i, n, weights, biases)
        if y % 2 == 0:

            nonspammers += 1
        else:

            spammers+=1

    return[nonspammers, spammers]
T = int(read())
for i in range(T):
    print(readTestCase())

This is for the Problem SPAMCLAS.(Python 3.5)
I am getting an overtime error.
How can I optimize this code?

According to the constraints given, 1 <= minX, maxX <= 1e9 and 1 <= N <= 1e5.

Your solution has complexity O(T.(maxX - minX).N) whose value is around 1e(1 + 9 + 5) or 1e15; much much more than 1e8.

Hence there is absolutely no chance for this algorithm to complete within the time limit…

Check the editorial here if you face problem.

Thank you, I am not able to understand the editorial solution.
If possible, please can you explain me.

Thank you, I am not able to understand the editorial solution. If possible, please can you explain me. AGS Developers
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