Package g2301_2400.s2303_calculate_amount_paid_in_taxes

Class Solution

  • public class Solution
extends Object
    2303 - Calculate Amount Paid in Taxes.

    Easy

    You are given a 0-indexed 2D integer array brackets where brackets[i] = [upperi, percenti] means that the ith tax bracket has an upper bound of upperi and is taxed at a rate of percenti. The brackets are sorted by upper bound (i.e. upperi-1 < upperi for 0 < i < brackets.length).

    Tax is calculated as follows:

    • The first upper0 dollars earned are taxed at a rate of percent0.
    • The next upper1 - upper0 dollars earned are taxed at a rate of percent1.
    • The next upper2 - upper1 dollars earned are taxed at a rate of percent2.
    • And so on.

    You are given an integer income representing the amount of money you earned. Return the amount of money that you have to pay in taxes. Answers within 10-5 of the actual answer will be accepted.

    Example 1:

    Input: brackets = [[3,50],[7,10],[12,25]], income = 10

    Output: 2.65000

    Explanation:

    The first 3 dollars you earn are taxed at 50%. You have to pay $3 * 50% = $1.50 dollars in taxes.

    The next 7 - 3 = 4 dollars you earn are taxed at 10%. You have to pay $4 * 10% = $0.40 dollars in taxes.

    The final 10 - 7 = 3 dollars you earn are taxed at 25%. You have to pay $3 * 25% = $0.75 dollars in taxes. You have to pay a total of $1.50 + $0.40 + $0.75 = $2.65 dollars in taxes.

    Example 2:

    Input: brackets = [[1,0],[4,25],[5,50]], income = 2

    Output: 0.25000

    Explanation:

    The first dollar you earn is taxed at 0%. You have to pay $1 * 0% = $0 dollars in taxes.

    The second dollar you earn is taxed at 25%. You have to pay $1 * 25% = $0.25 dollars in taxes.

    You have to pay a total of $0 + $0.25 = $0.25 dollars in taxes.

    Example 3:

    Input: brackets = [[2,50]], income = 0

    Output: 0.00000

    Explanation: You have no income to tax, so you have to pay a total of $0 dollars in taxes.

    Constraints:

    • 1 <= brackets.length <= 100
    • 1 <= upperi <= 1000
    • 0 <= percenti <= 100
    • 0 <= income <= 1000
    • upperi is sorted in ascending order.
    • All the values of upperi are unique.
    • The upper bound of the last tax bracket is greater than or equal to income.

    • Constructor Detail

      • Solution

        public Solution()

    • Method Detail

      • calculateTax

        public double calculateTax​(int[][] brackets,
                           int income)