Program 1
List operations
Common list methods.
python
nums = [3, 1, 4, 1, 5, 9, 2, 6]
nums.append(5)
nums.sort()
print(nums)
print("Max:", max(nums), "Min:", min(nums)) All topicsBasic Intermediate Intermediate Advanced
Topic 06 of 17
Lists
Ordered, mutable sequences — the workhorse collection in Python.
Indexing & slicing
append/extend/pop
List comprehensions
Sorting
Basic
2 programsBasic
Program 2
Sum and average
Aggregate numbers in a list.
python
marks = [78, 85, 92, 67, 88]
print("Total:", sum(marks))
print("Average:", sum(marks) / len(marks))Intermediate
2 programsProgram 1
List comprehension
Squares of even numbers only.
python
squares = [x * x for x in range(1, 11) if x % 2 == 0]
print(squares)Output
[4, 16, 36, 64, 100]Program 2
Remove duplicates (preserve order)
Use dict.fromkeys for ordered de-dup.
python
items = [1, 2, 2, 3, 4, 4, 5, 1]
unique = list(dict.fromkeys(items))
print(unique)Advanced
1 programProgram 1
Matrix transpose
Transpose a 2-D list using zip.
python
matrix = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
transposed = [list(row) for row in zip(*matrix)]
for row in transposed:
print(row)