Python program to display all second lowest grade student name from nested list

Suppose we have the names and grades for each student in a nested list we have to display the names of any students having the second lowest grade. If there are more than one students with the second lowest grade, reorder these in an alphabetical order and print each name on a new line.

So, if the input is like students = [['Amal',37],['Bimal',37],['Tarun',36],['Akash',41],['Himadri',39]], then the output will be Amal, Bimal both have second least score 37, they are placed in alphabetic order.

To solve this, we will follow these steps −

• min_mark := minimum of scores for all x in students
• students := a list of students x for all x in students if score of > min_mark
• min2_mark := minimum of scores for all x in students
• students := sort the list [with names of x for all x in students if score of x is same as
• min2_mark]
• for each x in students, do
  • display x

Example

Let us see the following implementation to get better understanding

def solve(students):
   min_mark = min(x[1] for x in students)
   students = [x for x in students if x[1] > min_mark]
   min2_mark = min(x[1] for x in students)
   students = sorted([x[0] for x in students if x[1] == min2_mark])
   for x in students:
      print(x)

students = [['Amal',37],['Bimal',37],['Tarun',36],['Akash',41],['Himadri',39]]
solve(students)

Input

[['Amal',37],['Bimal',37],['Tarun',36],['Akash',41],['Himadri',39]]

Output

Amal
Bimal

Arnab Chakraborty

Updated on 11-Oct-2021 09:28:02

• Related Questions & Answers
• Python program to Flatten Nested List to Tuple List
• Program to create grade calculator in Python
• Python program to get all pairwise combinations from a list
• Golang Program to read the marks of subjects and display the Grade
• Python program to find Largest, Smallest, Second Largest, and Second Smallest in a List?
• Python Program to Flatten a Nested List using Recursion
• C++ program to store student roll and name using map STL
• Python Program to Display all the Nodes in a Linked List using Recursion
• Python - Convert List to custom overlapping nested list
• Python program to find the second largest number in a list
• Python program to sort a list of tuples by second Item
• Change the column name from a MySQL table with Student record?
• Nested list comprehension in python
• Python Program to get all unique keys from a List of Dictionaries
• Python - Convert given list into nested list