add 3150

Author: fishercoder1534

Diff for: database/_3150.sql

@@ -0,0 +1,7 @@
+-- Write your PostgreSQL query statement below
+select tweet_id
+from tweets
+where length(content) > 140
+   or regexp_count(content, '@\w') > 3
+   or regexp_count(content, '#\w') > 3
+order by 1

Diff for: paginated_contents/database/README.md

@@ -2,6 +2,7 @@
 |------|----------------|-----------------------------------------------------------------------------------------------------------------------|---------------|---------------|-------------
 | 3198 |[Find Cities in Each State](https://leetcode.com/problems/find-cities-in-each-state/)| [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_3198.sql)                                || Easy |
 | 3172 |[Second Day Verification](https://leetcode.com/problems/second-day-verification/)| [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_3172.sql)                                || Easy |
+| 3150 |[Invalid Tweets II](https://leetcode.com/problems/invalid-tweets-ii/)| [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_3150.sql)                                || Easy |
 | 2990 |[Loan Types](https://leetcode.com/problems/loan-types/)| [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_2990.sql)                                || Easy |
 | 2205 |[The Number of Users That Are Eligible for Discount](https://leetcode.com/problems/the-number-of-users-that-are-eligible-for-discount/)| [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_2205.sql)                                || Easy |
 | 2082 |[The Number of Rich Customers](https://leetcode.com/problems/the-number-of-rich-customers/)| [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/database/_2082.sql)                                || Easy |