> For the complete documentation index, see [llms.txt](https://algorithm.prettylog.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy.md).

# Easy

- [Middle Node](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/middle-node.md)
- [Evaluate Expression Tree](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/evaluate-expression-tree.md)
- [Insertion Sort](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/insertion-sort.md)
- [Semordnilap](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/semordnilap.md)
- [First Non Repeating Character](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/first-non-repeating-character.md)
- [Generate Document](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/generate-document.md)
- [Run Length Encoding](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/run-length-encoding.md)
- [Caesar Cipher Encryptor](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/caesar-cipher-encryptor.md)
- [Palindrome Check](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/palindrome-check.md)
- [Selection Sort](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/selection-sort.md)
- [Bubble Sort](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/bubble-sort.md)
- [Find Three Largest Sum](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/find-three-largest-sum.md)
- [Binary Search](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/binary-search.md)
- [Product Sum](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/product-sum.md)
- [Nth Fibonacci](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/nth-fibonacci.md)
- [Remove Duplicates From LinkedList](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/remove-duplicates-from-linkedlist.md)
- [Tandem Bicycle](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/tandem-bicycle.md)
- [Class Photos](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/class-photos.md)
- [Minimum Waiting Time](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/minimum-waiting-time.md)
- [Depth-first Search](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/depth-first-search.md)
- [Node Depths](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/node-depths.md)
- [Branch Sums](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/branch-sums.md)
- [Find Closest Value In Bst](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/find-closest-value-in-bst.md)
- [Non Constructible Change](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/non-constructible-change.md)
- [Tournament Winner](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/tournament-winner.md)
- [Sorted Squared Array](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/sorted-squared-array.md)
- [Validate Subsequences](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/validate-subsequences.md)
- [Two Number Sum](https://algorithm.prettylog.com/algorithm-problems/algoexpert/easy/two-number-sum.md)