#!/bin/python3
from __future__ import annotations


def ask_int(prompt: str) -> int:
    """Prompt user for a positive integer."""
    while True:
        try:
            value = int(input(prompt).strip())
            if value <= 0:
                print("Please enter a positive integer.")
                continue
            return value
        except ValueError:
            print("Please enter a valid integer.")


def ask_float(prompt: str) -> float:
    """Prompt user for a positive float."""
    while True:
        try:
            value = float(input(prompt).strip())
            if value <= 0:
                print("Please enter a positive number.")
                continue
            return value
        except ValueError:
            print("Please enter a valid number.")

def ask_yes_no(prompt: str) -> bool:
    """Prompt the user for a yes/no answer."""
    while True:
        answer = input(prompt).strip().lower()

        if answer in {"y", "yes"}:
            return True

        if answer in {"n", "no"}:
            return False

        print("Please enter yes or no. [y/n]")