import math


def get_distance(x1: int, y1: int, x2: int, y2: int) -> float:
    """
    it returns the distance between two points
    :param x1: int
    :param y1: int
    :param x2: int
    :param y2: int
    :return: float
    """
    return math.sqrt(((x1 - x2) ** 2 + (y1 - y2) ** 2))