Update README.md

Author: YuriSpiridonov

README.md

@@ -287,6 +287,7 @@ In this repository provided my Python solutions of LeetCode problems.
 |1143.|[Longest Common Subsequence](https://leetcode.com/problems/longest-common-subsequence)|[Python](https://github.com/YuriSpiridonov/30-Day-LeetCoding-Challenge/blob/master/Week%204/LongestCommonSubsequence_recursion.py)|Medium|`Recursion`, Time Limit Exceeded|
 |1160.|[Find Words That Can Be Formed by Characters](https://leetcode.com/problems/find-words-that-can-be-formed-by-characters/)|[Python](/Easy/1160.FindWordsThatCanBeFormedbyCharacters.py)|Easy|`Dictionary`|
 |1161.|[Maximum Level Sum of a Binary Tree](https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree/)|[Python](/Medium/1161.MaximumLevelSumofaBinaryTree.py)|Medium|`BFS`|
+|1169.|[Invalid Transactions](https://leetcode.com/problems/invalid-transactions/)|[Python](/Medium/1169.InvalidTransactions.py)|Medium|Ugly brute force|
 |1171.|[Remove Zero Sum Consecutive Nodes from Linked List](https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list/)|[Python](/Medium/1171.RemoveZeroSumConsecutiveNodesfromLinkedList.py)|Medium|Brute Force - resolve|
 |1207.|[Unique Number of Occurrences](https://leetcode.com/problems/unique-number-of-occurrences/)|[Python](/Easy/1207.UniqueNumberofOccurrences.py)|Easy|`Dictionary`|
 |1221.|[Split a String in Balanced Strings](https://leetcode.com/problems/split-a-string-in-balanced-strings/)|[Python](/Easy/1221.SplitaStringinBalancedStrings.py)|Easy|`Stack`|