Python Program to Calculate Gross Salary of a Person

Given an integer basic and a character grade which denotes the basic salary and grade of a person respectively, the task is to find the gross salary of the person.

Python Program to Calculate Gross Salary of a Person

Gross Salary: The final salary computed after the additions of DA, HRA and other allowances. The formula for Gross Salary is defined as below:

Gross Salary = Basic + HRA + DA + Allow – PF
Here, HRA = 20% of Basic 
DA = 50% of basic 
Allow = 1700 if grade = ‘A’ 
Allow = 1500 if grade = ‘B’ 
Allow = 1300 if grade = ‘C’ 
PF = 11% of basic

Examples:

Input: basic = 10000, grade = ‘A’
Output: 17600

Input: basic = 4567, grade = ‘B’
Output: 8762

Approach: The idea is to find the allowance on the basis of the grade and then compute the HRA, DA, and PF on the basis of the basic salary. Below is the illustration of the computation of HRA, DA, and PF:

• HRA: House Rent Allowance is 20% of the basic salary:

HRA = Basic Salary * 0.20

• DA: Daily Allowance is the 50% of the basic salary:

DA = Basic Salary * 0.5

• PF: Provident Fund is the 11% of the basic salary.

PF = Basic Salary * 0.11

Below is the implementation of the above approach:

Python3

# Python3 program to implement
# the above approach

# Function to calculate the
# salary of the person
def computeSalary( basic, grade):

    hra = 0.2 * basic
    da = 0.5 * basic
    pf = 0.11 * basic

    # Condition to compute the
    # allowance for the person
    if grade == 'A':
        allowance = 1700.0
    elif grade == 'B':
        allowance = 1500.0
    else:
        allowance = 1300.0;

    gross = round(basic + hra + da +
                    allowance - pf)

    return gross

# Driver code
if __name__ == '__main__':

    basic = 10000
    grade = 'A'

    # Function call
    print(computeSalary(basic, grade));

Output

17600

Time Complexity: O(1) 
Auxiliary Space: O(1)

One approach that could be used in this situation is to use a dictionary to store the allowance amounts for each grade, rather than using a series of if-elif statements. This would allow for easier modification of the allowance amounts in the future, as the values could be easily accessed and changed in the dictionary.

For example, the code could be modified as follows:

Python3

# Dictionary to store allowance amounts for each grade
allowance_amounts = {'A': 1700.0, 'B': 1500.0, 'C': 1300.0}

# Function to calculate the salary of the person


def computeSalary(basic, grade):
    hra = 0.2 * basic
    da = 0.5 * basic
    pf = 0.11 * basic

    # Look up allowance amount in dictionary using grade as the key
    allowance = allowance_amounts[grade]

    gross = round(basic + hra + da + allowance - pf)

    return gross


# Driver code
if __name__ == '__main__':

    basic = 10000
    grade = 'A'

    # Function call
    print(computeSalary(basic, grade))

Output

17600

 Time complexity: O(1) 
Auxiliary space O(1), as the dictionary is constant and does not depend on the input size.

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