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Problem Statement

You are given the number of student n and their names along with their marks. Write a program to process them and print the following:

  1. The total number of students.
  2. The names of student who scored more than 50, sorted alphabetically.
  3. The average marks of all students.

The Input will be in the following format:

  • The first line contains an integer n (1 ≤ n ≤ 1000), which represents the number of students.
  • Each of the next n lines contains a student's name and marks (separated by a space).

Output Format:

  • Print total number of students.
  • Print the list of names of students who scored above 50, sorted alphabetically.
  • Print the average marks of all students, rounded to two decimal places.

(If in doubt about output format, refer to the test cases.)

Solution

n = int(input())    # Number of students
students = []
total_marks = 0

for i in range(n):
    name, marks = input().split()   # Input name and marks
    marks = int(marks)
    students.append((name, marks))
    total_marks += marks
    
stud_above_50 = []
for x in students:
    if x[1] > 50:
        stud_above_50.append(x[0])
stud_above_50.sort()
avg_marks = total_marks/n

print(f"Total students: {n}")
print(f"Students who scored above 50: {stud_above_50}")
print(f"Average marks: {avg_marks:.2f}")

Public Test Cases

Test Case 1:

Input:

5
John 60
Alice 40
Bob 80
Charlie 55
David 45

Expected Output:

Total Students: 5
Students who scored above 50: ['Bob', 'Charlie', 'John']
Average marks: 56.00

Test Case 2:

Input:

3
Eve 30
Frank 60
Grace 90

Expected Output:

Total students: 3
Students who scored above 50: ['Frank', 'Grace']
Average marks: 60.00

Private Test Cases

Test Case 1:

Input:

4
Adam 45
Ben 55
Cathy 65
Diana 75

Expected Output:

Total students: 4
Students who scored above 50: ['Ben', 'Cathy', 'Diana']
Average marks: 60.00

Test Case 2:

Input:

6
Liam 60
Nina 80
Ivy 100
Jack 95
Maya 55
Oscar 50

Expected Output:

Total students: 6
Students who scored above 50: ['Ivy', 'Jack', 'Liam', 'Maya', 'Nina']
Average marks: 73.33

Test Case 3:

Input:

2
Olivia 20
Paul 45

Expected Output:

Total students: 2
Students who scored above 50: []
Average marks: 32.50

Test Case 4:

Input:

7
Fiona 85
Diana 60
Aaron 80
Ethan 45
Charlie 40
George 70
Bella 55

Expected Output:

Total students: 7
Students who scored above 50: ['Aaron', 'Bella', 'Diana', 'Fiona', 'George']
Average marks: 62.14