Python: Find a tuple, the smallest second index value from a list of tuples

Last update on June 28 2025 12:48:09 (UTC/GMT +8 hours)

Smallest Second Index Tuple

Write a Python program to find a tuple, the smallest second index value from a list of tuples.

Visual Presentation:

Sample Solution:

Python Code:

# Define a list 'x' containing tuples, where each tuple has two elements
x = [(4, 1), (1, 2), (6, 0)]

# Use the 'min' function to find the minimum element in the list 'x' based on a custom key
# The 'key' argument specifies a lambda function that calculates a key for each element in 'x'
# The lambda function computes the key as a tuple, where the first element is the second element of the tuple (n[1]),
# and the second element is the negation of the first element (-n[0])
# This effectively sorts the tuples first by their second element in ascending order and then by their first element in descending order
# The 'min' function returns the tuple with the minimum key value
print(min(x, key=lambda n: (n[1], -n[0])))

Sample Output:

(6, 0) 

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to find a tuple with the largest first index value from a list of tuples.
• Write a Python program to remove all tuples from a list where the second index value is smaller than a given number.
• Write a Python program to sort a list of tuples based on the sum of elements in each tuple.
• Write a Python program to find the tuple with the highest product of elements in a list of tuples.

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