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diff --git a/leetcode-videos/2100-2109/README.md b/leetcode-videos/2100-2109/README.md
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+# LeetCode 2100-2109 题解视频
+
+- 2100. Find Good Days to Rob the Bank — `2100-find-good-days-to-rob-the-bank.mp4`
+- 2101. Detonate the Maximum Bombs — `2101-detonate-the-maximum-bombs.mp4`
+- 2102. Sequentially Ordinal Rank Tracker — `2102-sequentially-ordinal-rank-tracker.mp4`
+- 2103. Rings and Rods — `2103-rings-and-rods.mp4`
+- 2104. Sum of Subarray Ranges — `2104-sum-of-subarray-ranges.mp4`
+- 2105. Watering Plants II — `2105-watering-plants-ii.mp4`
+- 2106. Maximum Fruits Harvested After at Most K Steps — `2106-maximum-fruits-harvested-after-at-most-k-steps.mp4`
+- 2107. Number of Unique Flavors After Sharing K Candies — `2107-number-of-unique-flavors-after-sharing-k-candies.mp4`
+- 2108. Find First Palindromic String in the Array — `2108-find-first-palindromic-string-in-the-array.mp4`
+- 2109. Adding Spaces to a String — `2109-adding-spaces-to-a-string.mp4`