Tuples and Dictionaries
Bihar Board · Class 11 · Computer Science
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What is a tuple in Python and how do you create one?
Answer
A tuple is an ordered sequence of elements of different data types (integer, float, string, list, or even another tuple). Elements are enclosed in parentheses () and separated by commas. Example: tupl…
What is the main difference between lists and tuples in terms of mutability?
Answer
Lists are mutable (can be changed after creation) while tuples are immutable (cannot be changed after creation). Example: list1[0] = 10 works, but tuple1[0] = 10 gives TypeError. This makes tuples fas…
How do you access elements in a tuple? Give examples with both positive and negative indexing.
Answer
Elements are accessed using indexing starting from 0. Positive indexing: tuple1[0] (first element), tuple1[3] (fourth element). Negative indexing: tuple1[-1] (last element), tuple1[-2] (second last el…
What happens when you try to concatenate two tuples using the + operator?
Answer
The + operator joins two tuples to create a new tuple containing all elements from both tuples in order. Example: tuple1 = (1,3,5) and tuple2 = (2,4,6), then tuple1 + tuple2 = (1,3,5,2,4,6). The origi…
Explain tuple repetition with the * operator and provide an example.
Answer
The * operator repeats tuple elements a specified number of times. Syntax: tuple * n (where n is integer). Example: tuple1 = ('Hello', 'World'), then tuple1 * 3 = ('Hello', 'World', 'Hello', 'World', …
How do membership operators (in and not in) work with tuples?
Answer
The 'in' operator returns True if element exists in tuple, False otherwise. The 'not in' operator returns True if element doesn't exist, False if it exists. Example: For tuple1 = ('Red', 'Green', 'Blu…
What is tuple slicing and how does it work? Provide syntax and examples.
Answer
Tuple slicing extracts a portion of tuple using [start:end:step] syntax. Examples: tuple1 = (10,20,30,40,50), tuple1[1:4] = (20,30,40), tuple1[:3] = (10,20,30), tuple1[2:] = (30,40,50), tuple1[::2] = …
List the built-in functions that work with tuples: len(), max(), min(), sum(), sorted()
Answer
len(tuple): returns number of elements. max(tuple): returns largest element. min(tuple): returns smallest element. sum(tuple): returns sum of numeric elements. sorted(tuple): returns new sorted list f…
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