1marks = [67, 89, 45, 92, 78, 56, 83, 71]
2 
3highest = max(marks)
4lowest = min(marks)
5total = sum(marks)
6average = total / len(marks)
7above = 0
8for m in marks:
9    if m > average:
10        above += 1
11 
12print(f"Students : {len(marks)}")
13print(f"Highest  : {highest}")
14print(f"Lowest   : {lowest}")
15print(f"Average  : {average:.2f}")
16print(f"Above avg: {above}")
17print("Ranked   :", sorted(marks, reverse=True))

1items, prices = [], []
2while True:
3    choice = input("\n1 Add  2 Remove  3 View  4 Checkout: ")
4    if choice == "1":
5        items.append(input("Item: "))
6        prices.append(float(input("Price: ")))
7    elif choice == "2":
8        name = input("Remove which item? ")
9        if name in items:
10            i = items.index(name)
11            items.pop(i)
12            prices.pop(i)
13            print(name, "removed")
14        else:
15            print("Not in cart")
16    elif choice == "3":
17        print("Cart:", items)
18    elif choice == "4":
19        for name, p in zip(items, prices):
20            print(f"{name:<12} Rs {p:>8.2f}")
21        print(f"{'TOTAL':<12} Rs {sum(prices):>8.2f}")
22        break

1todo = []
2while True:
3    task = input("Add task (or 'done'): ")
4    if task == "done":
5        break
6    todo.append(task)
7 
8finished = []
9num = int(input("Which task number did you finish? "))
10finished.append(todo.pop(num - 1))
11 
12print("\nSTILL TO DO:")
13for i, t in enumerate(todo, 1):
14    print(f"  {i}. [ ] {t}")
15print("COMPLETED:")
16for t in finished:
17    print(f"     [x] {t}")

1names = ["Aditi", "Rohan", "Sahil", "Meera", "Javed", "Pooja"]
2scores = [84, 91, 77, 95, 91, 68]
3 
4pairs = list(zip(names, scores))
5ranked = sorted(pairs, key=lambda p: p[1], reverse=True)
6medals = ["Gold", "Silver", "Bronze"]
7 
8print("DISTRICT QUIZ - TOP 3")
9for medal, (name, score) in zip(medals, ranked[:3]):
10    print(f"{medal:<7} {name:<8} {score}")
11print("Others:", [n for n, s in ranked[3:]])

1rolls = list(range(101, 113))
2rows, cols = 3, 4
3hall = []
4k = 0
5for r in range(rows):
6    row = []
7    for c in range(cols):
8        row.append(rolls[k])
9        k += 1
10    hall.append(row)
11 
12for r, row in enumerate(hall):
13    print("ABC"[r], row)
14 
15find = int(input("Find roll number: "))
16for r in range(rows):
17    if find in hall[r]:
18        print(f"Seat: {'ABC'[r]}{hall[r].index(find) + 1}")
19print("Seats used:", sum(len(row) for row in hall))

1ranchi = (23.34, 85.31)
2cities = [
3    ("Jamshedpur", 22.80, 86.18),
4    ("Dhanbad", 23.80, 86.43),
5    ("Bokaro", 23.67, 86.15),
6    ("Deoghar", 24.48, 86.70),
7]
8print(f"{'City':<12}{'Lat':>7}{'Lon':>8}{'~km':>7}")
9for name, lat, lon in cities:
10    dy = (lat - ranchi[0]) * 111
11    dx = (lon - ranchi[1]) * 111
12    km = (dx ** 2 + dy ** 2) ** 0.5
13    print(f"{name:<12}{lat:>7}{lon:>8}{km:>7.0f}")

1log = ["u12", "u07", "u12", "u33", "u07", "u12", "u45", "u33", "u12"]
2 
3unique = set(log)
4top = max(unique, key=log.count)
5 
6print("Total visits    :", len(log))
7print("Unique visitors :", len(unique))
8print("Visitor IDs     :", sorted(unique))
9print(f"Most active     : {top} ({log.count(top)} visits)")

1aman = {"Riya", "Kunal", "Sana", "Dev", "Isha"}
2riya = {"Aman", "Kunal", "Isha", "Tara", "Omkar"}
3 
4mutual = aman & riya
5suggest = riya - aman - {"Aman"}
6 
7print(f"Mutual friends ({len(mutual)}):", ", ".join(sorted(mutual)))
8print("People Aman may know:", ", ".join(sorted(suggest)))
9print("All friends together:", len(aman | riya))

1core = {"English", "Physics", "Chemistry"}
2neha = {"English", "Physics", "Chemistry", "Maths", "Computer Science"}
3irfan = {"English", "Physics", "Chemistry", "Biology", "Hindi"}
4 
5print("Common      :", sorted(neha & irfan))
6print("Only Neha   :", sorted(neha - irfan))
7print("Only Irfan  :", sorted(irfan - neha))
8print("Neha has core subjects? ", core.issubset(neha))
9 
10irfan.add("Physical Education")
11print("Irfan now takes", len(irfan), "subjects")

1import random
2entries = [1021, 1088, 1021, 1105, 1130, 1088, 1177, 1202, 1130, 1251]
3unique = set(entries)
4print(f"Entries: {len(entries)}, unique: {len(unique)}")
5 
6winners = tuple(random.sample(sorted(unique), 3))
7print("Winners (1st, 2nd, 3rd):", winners)
8first, second, third = winners
9print(f"First prize goes to coupon {first}!")

1book = {"Aman": "98350 11111", "Priya": "70040 22222", "Rahul": "62000 33333"}
2 
3name = input("Search name: ").strip().title()
4if name in book:
5    print(f"{name}: {book[name]}")
6else:
7    print(f"{name} not found.")
8    book[name] = input(f"Enter {name}'s number to save: ")
9    print("Saved!")
10 
11for n, p in sorted(book.items()):
12    print(f"  {n:<8}{p}")

1prices = {"rice": 64, "atta": 42, "sugar": 46, "oil": 175, "dal": 128}
2order = {}
3while True:
4    item = input("Item (or done): ").lower()
5    if item == "done":
6        break
7    if item not in prices:
8        print("Sorry, we do not have", item)
9        continue
10    order[item] = order.get(item, 0) + int(input("Quantity (kg/L): "))
11 
12total = 0
13for item, qty in order.items():
14    cost = prices[item] * qty
15    total += cost
16    print(f"{item.title():<7} {qty:>2} x {prices[item]:>4} = {cost:>6}")
17print(f"{'TOTAL':<20}= {total:>6}")

1speech = """Education is the key to growth. Jharkhand needs education,
2skills and jobs. Skills create jobs and jobs create growth."""
3 
4text = speech.lower()
5for ch in ".,":
6    text = text.replace(ch, "")
7words = text.split()
8 
9freq = {}
10for w in words:
11    freq[w] = freq.get(w, 0) + 1
12 
13top = sorted(freq.items(), key=lambda kv: kv[1], reverse=True)[:5]
14print("Total words:", len(words), "| unique:", len(freq))
15for word, n in top:
16    print(f"{word:<10} {'#' * n} {n}")

1report = {
2    "Aman":  {"Maths": 78, "Science": 85, "English": 72, "Hindi": 80},
3    "Priya": {"Maths": 95, "Science": 91, "English": 88, "Hindi": 84},
4}
5for name, marks in report.items():
6    total = sum(marks.values())
7    pct = total / (len(marks) * 100) * 100
8    best = max(marks, key=marks.get)
9    print(f"===== {name} =====")
10    for sub, m in marks.items():
11        print(f"  {sub:<8} {m:>3}")
12    print(f"  Total {total}, {pct:.1f}%  Best: {best}")

1districts = {
2    "ranchi": {"hq": "Ranchi", "famous": "Hundru Falls", "division": "South Chotanagpur"},
3    "east singhbhum": {"hq": "Jamshedpur", "famous": "Jubilee Park", "division": "Kolhan"},
4    "dhanbad": {"hq": "Dhanbad", "famous": "Maithon Dam", "division": "North Chotanagpur"},
5    "deoghar": {"hq": "Deoghar", "famous": "Baidyanath Temple", "division": "Santhal Pargana"},
6    "latehar": {"hq": "Latehar", "famous": "Netarhat", "division": "Palamu"},
7}
8while True:
9    q = input("District (or exit): ").strip().lower()
10    if q == "exit":
11        break
12    info = districts.get(q)
13    if info:
14        print(f"  HQ: {info['hq']} | Famous: {info['famous']} | Division: {info['division']}")
15    else:
16        print("  Not found. Try:", ", ".join(d.title() for d in districts))