"""Final Assignment 1 — Console To-Do List Solution"""

todos = []

def add(task):
    todos.append({"task": task, "done": False})

def show():
    if not todos:
        print("(nothing to do)")
        return
    for i, t in enumerate(todos, 1):
        mark = "[x]" if t["done"] else "[ ]"
        print(f"{i}. {mark} {t['task']}")

def mark_done(idx):
    if 1 <= idx <= len(todos):
        todos[idx - 1]["done"] = True
        print(f"Completed number {idx}")
    else:
        print("No such number")

def remove(idx):
    if 1 <= idx <= len(todos):
        del todos[idx - 1]
        print(f"Deleted number {idx}")
    else:
        print("No such number")

while True:
    raw = input("\n> ").strip()
    if not raw:
        continue
    parts = raw.split(maxsplit=1)
    cmd = parts[0]
    arg = parts[1] if len(parts) > 1 else ""

    if cmd == "quit":
        break
    elif cmd == "add":
        if arg:
            add(arg)
            print("Added")
        else:
            print("Please enter a task")
    elif cmd == "list":
        show()
    elif cmd == "done":
        try:
            mark_done(int(arg))
        except ValueError:
            print("Please enter a number")
    elif cmd == "del":
        try:
            remove(int(arg))
        except ValueError:
            print("Please enter a number")
    else:
        print("Unknown command")

"""Final Assignment 2 — Vocabulary Quiz Answers"""
import random

WORDS = {
    "apple": "Apple", "book": "Book", "table": "Table", "door": "Door",
    "water": "Water", "fire": "Fire", "tree": "Tree", "sky": "Sky",
    "love": "Love", "time": "Time",
}

QUESTIONS = 10
score = 0

for i in range(1, QUESTIONS + 1):
    word, meaning = random.choice(list(WORDS.items()))
    answer = input(f"[{i}/{QUESTIONS}] What is the meaning of {word}?").strip()
    if answer == meaning:
        print("Correct!")
        score += 1
    else:
        print(f"Wrong answer. Correct answer: {meaning}")

print(f"Total score: {score} / {QUESTIONS}")

"""Final Assignment 3 — Household Ledger Answers"""

records = []

def add():
    t = input("Income/Expense:").strip()
    if t not in ("Income", "Expense"):
        print("Only 'Income' or 'Expense' allowed"); return
    amount = int(input("Amount:"))
    category = input("Category:").strip()
    memo = input("Memo:").strip()
    records.append({"type": t, "amount": amount, "category": category, "memo": memo})
    print("Added")

def show():
    for i, r in enumerate(records, 1):
        sign = "+" if r["type"] == "Income" else "-"
        print(f"{i}. {sign}{r['amount']:,} KRW [{r['category']}] {r['memo']}")

def summary():
    income = sum(r["amount"] for r in records if r["type"] == "Income")
    expense = sum(r["amount"] for r in records if r["type"] == "Expense")
    print(f"Income: {income:,} KRW")
    print(f"Expense: {expense:,} KRW")
    print(f"Balance: {income - expense:,} KRW")

    by_cat = {}
    for r in records:
        if r["type"] == "Expense":
            by_cat[r["category"]] = by_cat.get(r["category"], 0) + r["amount"]
    if by_cat:
        print("[By Expense Category]")
        for cat, amt in sorted(by_cat.items(), key=lambda x: -x[1]):
            print(f"{cat}: {amt:,} KRW")

while True:
    cmd = input("Command (add/list/summary/quit):").strip()
    if cmd == "quit": break
    elif cmd == "add": add()
    elif cmd == "list": show()
    elif cmd == "summary": summary()

"""Final Assignment 4 — Number Baseball Answers"""
import random

#3-digit number with no repeats from 0 to 9
digits = random.sample(range(10), 3)
answer = "".join(str(d) for d in digits)
tries = 0

print("3-digit number baseball start! (no repeats)")
while True:
    guess = input("Enter number (3 digits):").strip()
    if len(guess) != 3 or not guess.isdigit() or len(set(guess)) != 3:
        print("Enter only 3-digit numbers with no repeats")
        continue
    tries += 1
    strike = sum(1 for i in range(3) if guess[i] == answer[i])
    ball = sum(1 for i in range(3) if guess[i] in answer and guess[i] != answer[i])
    if strike == 3:
        print(f"3 strikes! Correct answer (attempt {tries})")
        break
    print(f"{strike} strikes {ball} balls")