update

leetcode/problem/odd-and-even-transactions.html

@@ -0,0 +1,82 @@
+<p>Table: <code>transactions</code></p>
+
+<pre>
++------------------+------+
+| Column Name      | Type | 
++------------------+------+
+| transaction_id   | int  |
+| amount           | int  |
+| transaction_date | date |
++------------------+------+
+The transactions_id column uniquely identifies each row in this table.
+Each row of this table contains the transaction id, amount and transaction date.
+</pre>
+
+<p>Write a solution to find the <strong>sum of amounts</strong> for <strong>odd</strong> and <strong>even</strong> transactions for each day. If there are no odd or even transactions for a specific date, display as <code>0</code>.</p>
+
+<p>Return <em>the result table ordered by</em> <code>transaction_date</code> <em>in <strong>ascending</strong> order</em>.</p>
+
+<p>The result format is in the following example.</p>
+
+<p>&nbsp;</p>
+<p><strong class="example">Example:</strong></p>
+
+<div class="example-block">
+<p><strong>Input:</strong></p>
+
+<p><code>transactions</code> table:</p>
+
+<pre class="example-io">
++----------------+--------+------------------+
+| transaction_id | amount | transaction_date |
++----------------+--------+------------------+
+| 1              | 150    | 2024-07-01       |
+| 2              | 200    | 2024-07-01       |
+| 3              | 75     | 2024-07-01       |
+| 4              | 300    | 2024-07-02       |
+| 5              | 50     | 2024-07-02       |
+| 6              | 120    | 2024-07-03       |
++----------------+--------+------------------+
+  </pre>
+
+<p><strong>Output:</strong></p>
+
+<pre class="example-io">
++------------------+---------+----------+
+| transaction_date | odd_sum | even_sum |
++------------------+---------+----------+
+| 2024-07-01       | 75      | 350      |
+| 2024-07-02       | 0       | 350      |
+| 2024-07-03       | 0       | 120      |
++------------------+---------+----------+
+  </pre>
+
+<p><strong>Explanation:</strong></p>
+
+<ul>
+	<li>For transaction dates:
+	<ul>
+		<li>2024-07-01:
+		<ul>
+			<li>Sum of amounts for odd transactions: 75</li>
+			<li>Sum of amounts for even transactions: 150 + 200 = 350</li>
+		</ul>
+		</li>
+		<li>2024-07-02:
+		<ul>
+			<li>Sum of amounts for odd transactions: 0</li>
+			<li>Sum of amounts for even transactions: 300 + 50 = 350</li>
+		</ul>
+		</li>
+		<li>2024-07-03:
+		<ul>
+			<li>Sum of amounts for odd transactions: 0</li>
+			<li>Sum of amounts for even transactions: 120</li>
+		</ul>
+		</li>
+	</ul>
+	</li>
+</ul>
+
+<p><strong>Note:</strong> The output table is ordered by <code>transaction_date</code> in ascending order.</p>
+</div>