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diff --git a/leetcode-videos/2110-2119/README.md b/leetcode-videos/2110-2119/README.md
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+# LeetCode 2110-2119 题解视频
+
+- 2110. Number of Smooth Descent Periods of a Stock — `2110-number-of-smooth-descent-periods-of-a-stock.mp4`
+- 2111. Minimum Operations to Make the Array K-Increasing — `2111-minimum-operations-to-make-the-array-k-increasing.mp4`
+- 2112. The Airport With the Most Traffic — `2112-the-airport-with-the-most-traffic.mp4`
+- 2113. Elements in Array After Removing and Replacing Elements — `2113-elements-in-array-after-removing-and-replacing-elements.mp4`
+- 2114. Maximum Number of Words Found in Sentences — `2114-maximum-number-of-words-found-in-sentences.mp4`
+- 2115. Find All Possible Recipes from Given Supplies — `2115-find-all-possible-recipes-from-given-supplies.mp4`
+- 2116. Check if a Parentheses String Can Be Valid — `2116-check-if-a-parentheses-string-can-be-valid.mp4`
+- 2117. Abbreviating the Product of a Range — `2117-abbreviating-the-product-of-a-range.mp4`
+- 2118. Build the Equation — `2118-build-the-equation.mp4`
+- 2119. A Number After a Double Reversal — `2119-a-number-after-a-double-reversal.mp4`