mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-11-04 03:33:12 +08:00
58 lines
2.9 KiB
HTML
58 lines
2.9 KiB
HTML
<p>You are given a <strong>0-indexed</strong> 2D integer array <code>brackets</code> where <code>brackets[i] = [upper<sub>i</sub>, percent<sub>i</sub>]</code> means that the <code>i<sup>th</sup></code> tax bracket has an upper bound of <code>upper<sub>i</sub></code> and is taxed at a rate of <code>percent<sub>i</sub></code>. The brackets are <strong>sorted</strong> by upper bound (i.e. <code>upper<sub>i-1</sub> < upper<sub>i</sub></code> for <code>0 < i < brackets.length</code>).</p>
|
|
|
|
<p>Tax is calculated as follows:</p>
|
|
|
|
<ul>
|
|
<li>The first <code>upper<sub>0</sub></code> dollars earned are taxed at a rate of <code>percent<sub>0</sub></code>.</li>
|
|
<li>The next <code>upper<sub>1</sub> - upper<sub>0</sub></code> dollars earned are taxed at a rate of <code>percent<sub>1</sub></code>.</li>
|
|
<li>The next <code>upper<sub>2</sub> - upper<sub>1</sub></code> dollars earned are taxed at a rate of <code>percent<sub>2</sub></code>.</li>
|
|
<li>And so on.</li>
|
|
</ul>
|
|
|
|
<p>You are given an integer <code>income</code> representing the amount of money you earned. Return <em>the amount of money that you have to pay in taxes.</em> Answers within <code>10<sup>-5</sup></code> of the actual answer will be accepted.</p>
|
|
|
|
<p> </p>
|
|
<p><strong>Example 1:</strong></p>
|
|
|
|
<pre>
|
|
<strong>Input:</strong> brackets = [[3,50],[7,10],[12,25]], income = 10
|
|
<strong>Output:</strong> 2.65000
|
|
<strong>Explanation:</strong>
|
|
Based on your income, you have 3 dollars in the 1<sup>st</sup> tax bracket, 4 dollars in the 2<sup>nd</sup> tax bracket, and 3 dollars in the 3<sup>rd</sup> tax bracket.
|
|
The tax rate for the three tax brackets is 50%, 10%, and 25%, respectively.
|
|
In total, you pay $3 * 50% + $4 * 10% + $3 * 25% = $2.65 in taxes.
|
|
</pre>
|
|
|
|
<p><strong>Example 2:</strong></p>
|
|
|
|
<pre>
|
|
<strong>Input:</strong> brackets = [[1,0],[4,25],[5,50]], income = 2
|
|
<strong>Output:</strong> 0.25000
|
|
<strong>Explanation:</strong>
|
|
Based on your income, you have 1 dollar in the 1<sup>st</sup> tax bracket and 1 dollar in the 2<sup>nd</sup> tax bracket.
|
|
The tax rate for the two tax brackets is 0% and 25%, respectively.
|
|
In total, you pay $1 * 0% + $1 * 25% = $0.25 in taxes.
|
|
</pre>
|
|
|
|
<p><strong>Example 3:</strong></p>
|
|
|
|
<pre>
|
|
<strong>Input:</strong> brackets = [[2,50]], income = 0
|
|
<strong>Output:</strong> 0.00000
|
|
<strong>Explanation:</strong>
|
|
You have no income to tax, so you have to pay a total of $0 in taxes.
|
|
</pre>
|
|
|
|
<p> </p>
|
|
<p><strong>Constraints:</strong></p>
|
|
|
|
<ul>
|
|
<li><code>1 <= brackets.length <= 100</code></li>
|
|
<li><code>1 <= upper<sub>i</sub> <= 1000</code></li>
|
|
<li><code>0 <= percent<sub>i</sub> <= 100</code></li>
|
|
<li><code>0 <= income <= 1000</code></li>
|
|
<li><code>upper<sub>i</sub></code> is sorted in ascending order.</li>
|
|
<li>All the values of <code>upper<sub>i</sub></code> are <strong>unique</strong>.</li>
|
|
<li>The upper bound of the last tax bracket is greater than or equal to <code>income</code>.</li>
|
|
</ul>
|