LeetCode 2303: Calculate Amount Paid in Taxes Solution

Master LeetCode problem 2303 (Calculate Amount Paid in Taxes), a easy challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.

2303. Calculate Amount Paid in Taxes

Easy

Array Simulation

Problem Explanation

Explanation:

To solve this problem, we need to iterate through the tax brackets and calculate the tax amount for each bracket based on the income. We can keep track of the remaining income and how much of it falls within each tax bracket. Finally, we sum up the tax amount for each bracket to get the total tax paid.

Start with initializing remainingIncome as income and totalTax as 0.0.
Iterate through the tax brackets.
For each tax bracket, calculate the taxable amount within that bracket by taking the minimum of upperi and remainingIncome.
Calculate the tax amount for that bracket by multiplying the taxable amount with the corresponding percentage.
Update remainingIncome by subtracting the taxable amount.
Add the tax amount for the current bracket to totalTax.
Continue this process until all tax brackets have been processed.
Return totalTax as the final result.

Time Complexity:

The time complexity of this approach is O(n), where n is the number of tax brackets.

Space Complexity:

The space complexity is O(1) as we are using constant extra space.

Solution Code

class Solution {
    public double calculateAmountPaidInTaxes(int[][] brackets, int income) {
        double remainingIncome = income;
        double totalTax = 0.0;
        
        for (int[] bracket : brackets) {
            int upper = bracket[0];
            int percent = bracket[1];
            int taxableAmount = Math.min(upper, (int)remainingIncome);
            double taxAmount = taxableAmount * percent / 100.0;
            remainingIncome -= taxableAmount;
            totalTax += taxAmount;
        }
        
        return totalTax;
    }
}

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