アルコール単位計算機

def calculate_alcohol_units(volume_ml: float, abv_percent: float) -> float:
    """
    Calculate alcohol units using the UK standard formula.
    1 unit = 10 mL (8 g) of pure ethanol.
    """
    return (volume_ml * abv_percent) / 1000.0

# Example drinks
drinks = [
    ("Pint of 4% beer (568 mL)", 568, 4.0),
    ("Glass of 12% wine (175 mL)", 175, 12.0),
    ("Shot of 40% spirits (25 mL)", 25, 40.0),
    ("Can of 5% beer (330 mL)", 330, 5.0),
    ("Bottle of 5% beer (500 mL)", 500, 5.0),
]

print(f"{'Drink':<35} {'Units':>6}")
print("-" * 43)
for name, vol, abv in drinks:
    units = calculate_alcohol_units(vol, abv)
    print(f"{name:<35} {units:>6.2f}")

# Weekly tracker
weekly_drinks = [
    (330, 5.0),   # Mon - can of beer
    (175, 12.0),  # Wed - glass of wine
    (500, 5.0),   # Fri - bottle of beer
    (25, 40.0),   # Fri - shot
    (175, 12.0),  # Sat - glass of wine
]

total_units = sum(calculate_alcohol_units(v, a) for v, a in weekly_drinks)
recommended_limit = 14.0

print(f"\nWeekly total: {total_units:.2f} units")
print(f"Recommended limit: {recommended_limit} units/week")
if total_units <= recommended_limit:
    print("Within recommended limits.")
else:
    print(f"Exceeds limit by {total_units - recommended_limit:.2f} units.")