Pseudo Code: Finding Maximum and Minimum Marks of Students

Objective

To create a program that accepts the marks of 20 students and outputs the maximum and minimum marks from the entered data.

Inputs and Outputs

• Input: Marks of 20 students
• Output: Maximum marks, Minimum marks

Pseudo Code

1. Initialize Variables

   • Create a list marks to store marks of students.
   • Set max_marks to a very low number (e.g., negative infinity).
   • Set min_marks to a very high number (e.g., positive infinity).

2. Input Marks

   • For i from 1 to 20 (inclusive):
     • Prompt user for input: "Enter marks for student i:"
     • Read input and convert to integer.
     • Append the input marks to the marks list.

3. Calculate Maximum and Minimum Marks

   • For each mark in marks:
     • If mark is greater than max_marks:
       • Set max_marks to mark.
     • If mark is less than min_marks:
       • Set min_marks to mark.

4. Output Results

   • Print "Maximum Marks: " followed by max_marks.
   • Print "Minimum Marks: " followed by min_marks.

Final Notes

• Ensure that the program handles invalid inputs (non-numeric values) appropriately.
• Consider adding functionality to display all entered marks if required.

Example Code Snippet (In Python)

# Initialize variables
marks = []
max_marks = float('-inf')
min_marks = float('inf')

# Input marks
for i in range(1, 21):
    mark = input(f"Enter marks for student {i}: ")
    mark = int(mark)  # Ensure the input is an integer
    marks.append(mark)

    # Check for maximum and minimum
    if mark > max_marks:
        max_marks = mark
    if mark < min_marks:
        min_marks = mark

# Output results
print("Maximum Marks:", max_marks)
print("Minimum Marks:", min_marks)

This pseudo code should guide the implementation of a program to determine the highest and lowest marks among 20 students effectively.