Algorithmic Efficiency

Section B Pattern Bank

Refining procedural logic. Master standard searching, robust validation, and complex data handling.

Ticket Price Function (4 Marks)

Write a function calc_price(tickets) that checks:
- If tickets > 5, price is tickets * 50.
- Else, price is tickets * 60.
Return the calculated price.

def calc_price(tickets):
    # Determine price
    if ... :
        price = ...
    else:
        price = ...
    return price

# Validation Tests
print(calc_price(2))  # Expected: 120
print(calc_price(10)) # Expected: 500

Find the Max (4 Marks)

Take two numbers as input. Print the largest one. If equal, print "Equal".

n1 = int(input("Num 1: "))
n2 = int(input("Num 2: "))
if n1 > n2:
    print(n1)
elif ... :
    ...
else:
    print("Equal")

Validation Loop (5 Marks)

Keep asking for an age while it is < 0 or > 100. Print "Accepted" once valid.

age = int(input("Age: "))
while ... :
    print("Invalid")
    age = ...
print("Accepted")

Running Total (5 Marks)

Loop 5 times. Ask for a number each time and add it to `total`. Print `total` at end.

total = 0
for i in range(0, 5):
    n = int(input("Enter: "))
    # Accumulate
    ...
print(total)

Linear Search (4 Marks)

Loop through the fish list. If you find "Nemo", print "Found it!".

fish = ["Dory", "Marlin", "Gill", "Nemo", "Bruce"]
for f in fish:
    if ... :
        print("Found it!")

Entry Logic (4 Marks)

To enter, must be 15+ AND have a ticket ("yes"). Output "Enter" or "Stop".

age = int(input("Age: "))
has_ticket = input("Ticket? ")
if ... :
    print("Enter")
else:
    print("Stop")

Grading Function (4 Marks)

Function `get_grade(score)`. Score >= 50 returns "Pass", else "Fail".

def get_grade(score):
    if ... :
        return "Pass"
    else:
        return "Fail"

print(get_grade(60))

Find Minimum (4 Marks)

Find and print the smallest number in the list `nums`.

nums = [10, 2, 5]
min_val = nums[0]
for n in nums:
    if ... :
        min_val = n
print(min_val)

Input Loop (5 Marks)

Ask for a password. Keep asking WHILE shorter than 5 characters. Print "Saved".

pw = input("Password: ")
while len(pw) < 5:
    print("Too short")
    pw = ...
print("Saved")

Selective Sum (5 Marks)

Sum only the ODD numbers (result 9) from the list `nums`.

nums = [1, 2, 3, 4, 5]
total = 0
for n in nums:
    if ... :
        total = total + n
print(total)

Find the Winner (4 Marks)

Loop through `codes`. If you find "Golden", print "Winner".

codes = ["A1", "B2", "Golden", "C3"]
for c in codes:
    if ... :
        print("Winner")
        break

Complex Logic (4 Marks)

If `age > 18` AND `paid == "Yes"` print "Welcome". Else "Sorry".

age = 20
paid = "Yes"
if ... :
    print("Welcome")
else:
    ...

Counting Items

Count how many times "A" appears in the list.

grades = ["A", "B", "A", "C", "A"]\ncount = ...\nprint(count)

Calculate Average

Print the average of the list numbers.

nums = [10, 20, 30, 40]\navg = ...\nprint(avg)

Clean String

Remove all spaces using `.replace()`.

text = "Py th on"\nclean = ...\nprint(clean)

Reverse List

Print the list in reverse order.

nums = [1, 2, 3, 4]\n# Reverse it\nprint(...)

Password Check

If `p1` matches `p2`, print "Match".

p1 = "secret"\np2 = "secret"\nif ... :

Range Validation

If `age` is between 13 and 19 inclusive, print "Teen".

age = 15\nif ... :

Find Max Position

Print index of the largest number.

scores = [10, 50, 30, 20]\nidx = ...\nprint(idx)

Filter Positives

Append only positive numbers to `clean`.

data = [10, -5, 20]\nclean = []\nfor n in data:\n    if ... :\nprint(clean)

Infinite Loop Break

Stop loop when `x` is 5 using `break`.

x = 0\nwhile True:\n    x += 1\n    print(x)\n    if x == 5:\n        ...

Skip Iteration

Skip printing the number 2 using `continue`.

for i in range(1, 4):\n    if i == 2:\n        ...\n    print(i)

Search Flag

Set `found` to True and break when "Key" is found.

items = ["Rock", "Key", "Map"]\nfound = False\nfor i in items:\n    if i == "Key":\n        ...\nprint(found)

Discount Logic

If `price` > 100, reduce it by 10%.

price = 200\nif price > 100:\n    price = ...\nprint(price)

Complexity Mastered!

You have conquered standard algorithms. The final tier awaits.

Final Boss: Level 3