Given different scored marks of students. We need to find a Grade Calculator in Python. The test score is an average of the respective marks scored in assignments, tests, and lab work. The final test score is assigned using the below formula.
10% of marks scored from submission of Assignments 70% of marks scored from Test 20% of marks scored in Lab-Works
The grade will be calculated according to the:
1. score >= 90 : "A" 2. score >= 80 : "B" 3. score >= 70 : "C" 4. score >= 60 : "D"
Also, calculate the total class average and letter grade of the class.
Create a Grade Calculator in Python
Enter Marks Obtained from 5 Subjects to get your Grade.
Python3
print("Enter Marks Obtained in 5 Subjects: ")total1 = 44total2 = 67total3 = 76total4 = 99total5 = 58tot = total1 + total2 + total3 + total4 + total4avg = tot / 5if avg >= 91 and avg <= 100: print("Your Grade is A1")elif avg >= 81 and avg < 91: print("Your Grade is A2")elif avg >= 71 and avg < 81: print("Your Grade is B1")elif avg >= 61 and avg < 71: print("Your Grade is B2")elif avg >= 51 and avg < 61: print("Your Grade is C1")elif avg >= 41 and avg < 51: print("Your Grade is C2")elif avg >= 33 and avg < 41: print("Your Grade is D")elif avg >= 21 and avg < 33: print("Your Grade is E1")elif avg >= 0 and avg < 21: print("Your Grade is E2")else: print("Invalid Input!") |
Output:
Enter Marks Obtained in 5 Subjects: Your Grade is B1
Optimized code to create a grade calculator in Python
Python3
# Creating a dictionary which# consists of the student name,# assignment result test results# and their respective lab results# 1. Jack's dictionaryjack = {"name": "Jack Frost", "assignment": [80, 50, 40, 20], "test": [75, 75], "lab": [78.20, 77.20] }# 2. James's dictionaryjames = {"name": "James Potter", "assignment": [82, 56, 44, 30], "test": [80, 80], "lab": [67.90, 78.72] }# 3. Dylan's dictionarydylan = {"name": "Dylan Rhodes", "assignment": [77, 82, 23, 39], "test": [78, 77], "lab": [80, 80] }# 4. Jessica's dictionaryjess = {"name": "Jessica Stone", "assignment": [67, 55, 77, 21], "test": [40, 50], "lab": [69, 44.56] }# 5. Tom's dictionarytom = {"name": "Tom Hanks", "assignment": [29, 89, 60, 56], "test": [65, 56], "lab": [50, 40.6] }# Function calculates averagedef get_average(marks): total_sum = sum(marks) total_sum = float(total_sum) return total_sum / len(marks)# Function calculates total averagedef calculate_total_average(students): assignment = get_average(students["assignment"]) test = get_average(students["test"]) lab = get_average(students["lab"]) # Return the result based # on weightage supplied # 10 % from assignments # 70 % from test # 20 % from lab-works return (0.1 * assignment + 0.7 * test + 0.2 * lab)# Calculate letter grade of each studentdef assign_letter_grade(score): if score >= 90: return "A" elif score >= 80: return "B" elif score >= 70: return "C" elif score >= 60: return "D" else: return "E"# Function to calculate the total# average marks of the whole classdef class_average_is(student_list): result_list = [] for student in student_list: stud_avg = calculate_total_average(student) result_list.append(stud_avg) return get_average(result_list)# Student list consisting the# dictionary of all studentsstudents = [jack, james, dylan, jess, tom]# Iterate through the students list# and calculate their respective# average marks and letter gradefor i in students: print(i["name"]) print("=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=") print("Average marks of %s is : %s " % (i["name"], calculate_total_average(i))) print("Letter Grade of %s is : %s" % (i["name"], assign_letter_grade(calculate_total_average(i)))) print()# Calculate the average of whole classclass_av = class_average_is(students)print("Class Average is %s" % (class_av))print("Letter Grade of the class is %s " % (assign_letter_grade(class_av))) |
Output
Jack Frost =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+= Average marks of Jack Frost is : 72.79 Letter Grade of Jack Frost is : C James Potter =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+= Average marks of James Potter is : 75.962 Letter Grade of James Potter is : C Dylan Rhodes =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+= Average marks of Dylan Rhodes is : 75.775 Letter Grade of Dylan Rhodes is : C Jessica Stone =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+= Average marks of Jessica Stone is : 48.356 Letter Grade of Jessica Stone is : E Tom Hanks =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+= Average marks of Tom Hanks is : 57.26 Letter Grade of Tom Hanks is : E Class Average is 72.79 Letter Grade of the class is C
Time Complexity: O(n*l), Here n is the number of students and l is the total number of subjects
Auxiliary Space: O(1), As constant extra space is used.
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