import time

import numpy as np


class Task:
    def __init__(self, identifier):
        self.identifier = identifier
        # choosee the size of the problem
        self.size = np.random.randint(2, 1000)
        # Generate the input of the problem
        self.a = np.random.rand(self.size, self.size)
        self.b = np.random.rand(self.size)
        # prepare room for the results
        self.x = np.zeros((self.size))
        self.time = 0

    def work(self):
        start = time.perf_counter()
        self.x = self.b
        self.x = np.linalg.solve(self.a, self.b)
        self.time = time.perf_counter() - start