algorithms, branch HEAD

Removed visualizations dir

2026-09-18T05:50:40Z

commit 964fa1713075bd11abf2a4a167ab0973d7163ff1 parent 9d7b353707cab9fc282fb2a70aa1e2f4969a8698 Author: Andrew Laack Date: Fri, 18 Sep 2026 00:50:40 -0500 Removed visualizations dir

Updated gitignore

2026-09-13T16:51:32Z

commit 9d7b353707cab9fc282fb2a70aa1e2f4969a8698 parent 0bafcf643f45f7f8d8df3c3497831cc515ad0e5d Author: Andrew Laack Date: Sun, 13 Sep 2026 11:51:32 -0500 Updated gitignore

Updated prim visualization, added merkle tree to plan, fixed readme, did subtree encoding lc problem, did dp problem, and graph translation problem

2026-09-13T16:27:07Z

commit 0bafcf643f45f7f8d8df3c3497831cc515ad0e5d parent 7f56f71951c5d5e7916c1a3b2c38b423ade21431 Author: Andrew Laack Date: Sun, 13 Sep 2026 11:27:07 -0500 Updated prim visualization, added merkle tree to plan, fixed readme, did subtree encoding lc problem, did dp problem, and graph translation problem

Moved directories to correct locations

2026-09-12T16:08:47Z

commit 7f56f71951c5d5e7916c1a3b2c38b423ade21431 parent 12afae29c90c680dbd2781534e7bc5ab9fcb9129 Author: Andrew Laack Date: Sat, 12 Sep 2026 11:08:47 -0500 Moved directories to correct locations

Renamed lc/ -> leetcode/

2026-09-12T16:08:15Z

commit 12afae29c90c680dbd2781534e7bc5ab9fcb9129 parent 3201591d0eeabd2634a4f16254794ac518e0ec91 Author: Andrew Laack Date: Sat, 12 Sep 2026 11:08:15 -0500 Renamed lc/ -> leetcode/

Updated readme, updated plan

2026-09-12T16:07:47Z

commit 3201591d0eeabd2634a4f16254794ac518e0ec91 parent a8bb40057a4fb291131de0c41a1cd13b73486bd4 Author: Andrew Laack Date: Sat, 12 Sep 2026 11:07:47 -0500 Updated readme, updated plan

Quickselect

2026-09-12T15:26:13Z

commit a8bb40057a4fb291131de0c41a1cd13b73486bd4 parent 9b6e2d120e2ac998acad4c90f755ebd8a6e6fb46 Author: Andrew Laack Date: Sat, 12 Sep 2026 10:26:13 -0500 Quickselect

Two problems from contest

2026-09-11T21:39:09Z

commit 9b6e2d120e2ac998acad4c90f755ebd8a6e6fb46 parent cd956f6d2ffd2b8679c841d2bf4876442eceda64 Author: Andrew Laack Date: Fri, 11 Sep 2026 16:39:09 -0500 Two problems from contest

Some cf work

2026-09-11T20:50:00Z

commit cd956f6d2ffd2b8679c841d2bf4876442eceda64 parent 53e1f23ef5dcd5a03a70eb7f3ad78d9bfd75502b Author: Andrew Laack Date: Fri, 11 Sep 2026 15:50:00 -0500 Some cf work

Refactoring

2026-09-11T19:01:38Z

commit 53e1f23ef5dcd5a03a70eb7f3ad78d9bfd75502b parent 572deea60df2cd88ab7260b72bbdb9ed53899c0f Author: Andrew Laack Date: Fri, 11 Sep 2026 14:01:38 -0500 Refactoring

Did an assortment of problems and revised segment tree to have O(logn) updates

2026-09-11T01:01:04Z

commit 572deea60df2cd88ab7260b72bbdb9ed53899c0f parent df6491e806461115e38795f271aa115dd36273f0 Author: Andrew Laack Date: Thu, 10 Sep 2026 20:01:04 -0500 Did an assortment of problems and revised segment tree to have O(logn) updates

Naive segment tree without optimized updates

2026-09-10T20:38:55Z

commit df6491e806461115e38795f271aa115dd36273f0 parent d10cb4dc4b88678c5b802ad76b083c08e1bcd61f Author: Andrew Laack Date: Thu, 10 Sep 2026 15:38:55 -0500 Naive segment tree without optimized updates

Completed some union find problems

2026-09-10T15:38:40Z

commit d10cb4dc4b88678c5b802ad76b083c08e1bcd61f parent 69e20a4474ef66c9db5778893a9c162ef40e98c6 Author: Andrew Laack Date: Thu, 10 Sep 2026 10:38:40 -0500 Completed some union find problems

cpp and python permutation problem

2026-09-10T03:13:15Z

commit 69e20a4474ef66c9db5778893a9c162ef40e98c6 parent eb3d1bbf66fea2c0503eff05415f677f6d040a95 Author: Andrew Laack Date: Wed, 9 Sep 2026 22:13:15 -0500 cpp and python permutation problem

Updated code to run forever and to output a nice background image.

2026-09-10T01:34:00Z

commit eb3d1bbf66fea2c0503eff05415f677f6d040a95 parent 33414ff629f29f02711fe23b5223e5ac55d5e3d0 Author: Andrew Laack Date: Wed, 9 Sep 2026 20:34:00 -0500 Updated code to run forever and to output a nice background image.

Updated plan

2026-09-10T00:08:39Z

commit 33414ff629f29f02711fe23b5223e5ac55d5e3d0 parent a18853fb13f2ecfa35eccf5904afa48e9ebbf78c Author: Andrew Laack Date: Wed, 9 Sep 2026 19:08:39 -0500 Updated plan

Visualization of prim's algorithm, palindromic substring leetcode problem, added plan

2026-09-10T00:07:59Z

commit a18853fb13f2ecfa35eccf5904afa48e9ebbf78c parent 37fef6b06c8afe4e5f0d70bddd85942fe338f883 Author: Andrew Laack Date: Wed, 9 Sep 2026 19:07:59 -0500 Visualization of prim's algorithm, palindromic substring leetcode problem, added plan

Prefix sum start

2026-09-02T18:35:19Z

commit 37fef6b06c8afe4e5f0d70bddd85942fe338f883 parent c86c8cdf1619b2e553effcc8de0d0af504772038 Author: Andrew Laack Date: Wed, 2 Sep 2026 13:35:19 -0500 Prefix sum start

Another kahn's algorithm problem

2026-08-28T05:02:37Z

commit c86c8cdf1619b2e553effcc8de0d0af504772038 parent 5c2cacb54c304aa785e2455e4aecbc6342c2c9dd Author: Andrew Laack Date: Fri, 28 Aug 2026 00:02:37 -0500 Another kahn's algorithm problem

Continued working on kahn's algorithm / top sort problems

2026-08-26T03:18:18Z

commit 5c2cacb54c304aa785e2455e4aecbc6342c2c9dd parent dc6d20748dbd175bcbf2155fd870ca53fb13098d Author: Andrew Laack Date: Tue, 25 Aug 2026 22:18:18 -0500 Continued working on kahn's algorithm / top sort problems

Topological sort + MHT

2026-08-24T19:58:44Z

commit dc6d20748dbd175bcbf2155fd870ca53fb13098d parent c74cdba0592be08f5338a6951bfac3b44efb363e Author: Andrew Laack Date: Mon, 24 Aug 2026 14:58:44 -0500 Topological sort + MHT

Better top sort approach with 1 less special case

2026-08-23T16:17:47Z

commit c74cdba0592be08f5338a6951bfac3b44efb363e parent 07429cc6a3d3de2c89091e1281a683802c74b431 Author: Andrew Laack Date: Sun, 23 Aug 2026 11:17:47 -0500 Better top sort approach with 1 less special case

Topological sort in c++

2026-08-23T16:15:29Z

commit 07429cc6a3d3de2c89091e1281a683802c74b431 parent 657898d3beb19a305fb48a90cd8a637a7291975d Author: Andrew Laack Date: Sun, 23 Aug 2026 11:15:29 -0500 Topological sort in c++

Binary tree ordering

2026-08-22T19:14:22Z

commit 657898d3beb19a305fb48a90cd8a637a7291975d parent 91519e362bc788726d612a54f7581c23b0db711c Author: Andrew Laack Date: Sat, 22 Aug 2026 14:14:22 -0500 Binary tree ordering

MST in python and subsets in c++

2026-08-21T16:57:36Z

commit 9718ac04be30e364279b5b84b84aecc9cdcfd4f4 parent 37dcccf8eb7126af495e0e82593df5cae7333327 Author: Andrew Laack Date: Fri, 21 Aug 2026 11:57:36 -0500 MST in python and subsets in c++

Python solution

2026-08-21T03:49:54Z

commit 37dcccf8eb7126af495e0e82593df5cae7333327 parent f8ff0d66dd47a6168b8a846f27be71da852b6733 Author: Andrew Laack Date: Thu, 20 Aug 2026 22:49:54 -0500 Python solution

Completed a few more. I should read directions better...

2026-08-20T02:32:17Z

commit f6f567002b8b31de257de3eaeda8fa9a7e3c524e parent b027200d789669f827c66acbb1531882a457b492 Author: Andrew Laack Date: Wed, 19 Aug 2026 21:32:17 -0500 Completed a few more. I should read directions better...

Did a few leetcode problems in python

2026-08-18T19:06:40Z

commit b027200d789669f827c66acbb1531882a457b492 parent ebf224386f9c7b7ee6a7773dc9ecc6d3d8cd67ef Author: Andrew Laack Date: Tue, 18 Aug 2026 14:06:40 -0500 Did a few leetcode problems in python

AoC 2025 problem 1

2026-08-17T19:43:17Z

commit ebf224386f9c7b7ee6a7773dc9ecc6d3d8cd67ef parent 231c53e94f70be860ec574029d6b2b8c60230477 Author: Andrew Laack Date: Mon, 17 Aug 2026 14:43:17 -0500 AoC 2025 problem 1

Some leetcode problems

2026-02-17T20:02:53Z

commit 231c53e94f70be860ec574029d6b2b8c60230477 parent 45edb85c1501f4dcd49c729218729b542f1f263f Author: Andrew Laack Date: Tue, 17 Feb 2026 14:02:53 -0600 Some leetcode problems

Completed delete characters to make fancy string

2025-07-21T02:30:58Z

commit 45edb85c1501f4dcd49c729218729b542f1f263f parent dc148fa590a1c382eb5f4e4587f36d03fe009af0 Author: Andrew Laack Date: Sun, 20 Jul 2025 21:30:58 -0500 Completed delete characters to make fancy string

Completed clone graph

2025-07-17T00:30:42Z

commit dc148fa590a1c382eb5f4e4587f36d03fe009af0 parent c8218849eece650cf9e68e3a045748d971a01b7c Author: Andrew Laack Date: Wed, 16 Jul 2025 19:30:42 -0500 Completed clone graph

Completed max area of island

2025-07-16T20:02:24Z

commit c8218849eece650cf9e68e3a045748d971a01b7c parent 645b8954b236b5417fb0d1e51425b3dfcf11bc2e Author: Andrew Laack Date: Wed, 16 Jul 2025 15:02:24 -0500 Completed max area of island

Completed number of islands

2025-07-16T19:56:08Z

commit 645b8954b236b5417fb0d1e51425b3dfcf11bc2e parent 9fce40e7e010e496dce11e684915d7d648135538 Author: Andrew Laack Date: Wed, 16 Jul 2025 14:56:08 -0500 Completed number of islands

Completed letter combinations of a phone number

2025-07-16T19:40:16Z

commit 9fce40e7e010e496dce11e684915d7d648135538 parent 059292e8e6c05a3e3465a3df1a447e559031cdd8 Author: Andrew Laack Date: Wed, 16 Jul 2025 14:40:16 -0500 Completed letter combinations of a phone number

Completed palindrome partitioning

2025-07-16T16:45:22Z

commit 059292e8e6c05a3e3465a3df1a447e559031cdd8 parent eea791708232d7e8b1db4f2e257e814e8117f580 Author: Andrew Laack Date: Wed, 16 Jul 2025 11:45:22 -0500 Completed palindrome partitioning

Completed find the maximum length of valid subsequence i

2025-07-16T15:32:26Z

commit eea791708232d7e8b1db4f2e257e814e8117f580 parent 2d3548496b062725d6b40ae2a1941a8c44d1213c Author: Andrew Laack Date: Wed, 16 Jul 2025 10:32:26 -0500 Completed find the maximum length of valid subsequence i

Completed first missing positive

2025-07-15T22:55:17Z

commit 2d3548496b062725d6b40ae2a1941a8c44d1213c parent 53d63e9925bd3b762fedb4d5bda4489d8613fb4f Author: Andrew Laack Date: Tue, 15 Jul 2025 17:55:17 -0500 Completed first missing positive

Completed missing number

2025-07-15T22:22:29Z

commit 53d63e9925bd3b762fedb4d5bda4489d8613fb4f parent 9fbe317168b2ab430415ffc23da3668052f35f88 Author: Andrew Laack Date: Tue, 15 Jul 2025 17:22:29 -0500 Completed missing number

Completed valid word

2025-07-15T21:17:55Z

commit 9fbe317168b2ab430415ffc23da3668052f35f88 parent 7ca8c0c67e3e061650467eef9daab8ca09be43ec Author: Andrew Laack Date: Tue, 15 Jul 2025 16:17:55 -0500 Completed valid word

Completed word search

2025-07-15T21:00:34Z

commit 7ca8c0c67e3e061650467eef9daab8ca09be43ec parent 76103453bfd2e332e0aa2a8a06e91ae0eec46686 Author: Andrew Laack Date: Tue, 15 Jul 2025 16:00:34 -0500 Completed word search

Completed subsets ii

2025-07-15T20:16:51Z

commit 76103453bfd2e332e0aa2a8a06e91ae0eec46686 parent 1b4951b999ce8834719a4c541239519894c6baa0 Author: Andrew Laack Date: Tue, 15 Jul 2025 15:16:51 -0500 Completed subsets ii

Completed number of 1 bits

2025-07-14T22:07:07Z

commit 1b4951b999ce8834719a4c541239519894c6baa0 parent 085981a47a09f0a12e12ed9b070c15807ea79942 Author: Andrew Laack Date: Mon, 14 Jul 2025 17:07:07 -0500 Completed number of 1 bits

Completed number of 1 bits

2025-07-14T22:04:32Z

commit 085981a47a09f0a12e12ed9b070c15807ea79942 parent af538cc2d8cdfdf28348731cd00125c614080bb9 Author: Andrew Laack Date: Mon, 14 Jul 2025 17:04:32 -0500 Completed number of 1 bits

Completed subsets ii

2025-07-14T14:06:04Z

commit af538cc2d8cdfdf28348731cd00125c614080bb9 parent f0d10bbd1ce2281b7abfaa4e6af28590027c977d Author: Andrew Laack Date: Mon, 14 Jul 2025 09:06:04 -0500 Completed subsets ii

Completed non overlapping intervals

2025-07-14T13:37:56Z

commit f0d10bbd1ce2281b7abfaa4e6af28590027c977d parent b2340319622126515c448a1e4c6f06ef5f0aa2e6 Author: Andrew Laack Date: Mon, 14 Jul 2025 08:37:56 -0500 Completed non overlapping intervals

Completed non overlapping intervals

2025-07-14T13:35:17Z

commit b2340319622126515c448a1e4c6f06ef5f0aa2e6 parent 9fa4140dfba7b609151b5fd99c4ae7a0f65ae42f Author: Andrew Laack Date: Mon, 14 Jul 2025 08:35:17 -0500 Completed non overlapping intervals

Completed merge intervals

2025-07-11T04:09:58Z

commit 9fa4140dfba7b609151b5fd99c4ae7a0f65ae42f parent a42fd11f30666f5f8e5a69a0fa10c23489402f2e Author: Andrew Laack Date: Thu, 10 Jul 2025 23:09:58 -0500 Completed merge intervals

Completed insert interval

2025-07-09T23:38:50Z

commit a42fd11f30666f5f8e5a69a0fa10c23489402f2e parent 7882c9ec00720673b22973d53104159f3f10917f Author: Andrew Laack Date: Wed, 9 Jul 2025 18:38:50 -0500 Completed insert interval

Completed insert interval

2025-07-09T21:28:19Z

commit 7882c9ec00720673b22973d53104159f3f10917f parent d32710e7fef4c3ef02351ab80d78a0c48b3822cf Author: Andrew Laack Date: Wed, 9 Jul 2025 16:28:19 -0500 Completed insert interval

Completed design twitter

2025-07-09T19:47:07Z

commit d32710e7fef4c3ef02351ab80d78a0c48b3822cf parent 952f59b70f923cbe80b9adae8ae727b46aeb3569 Author: Andrew Laack Date: Wed, 9 Jul 2025 14:47:07 -0500 Completed design twitter

Completed task scheduler

2025-07-09T18:01:18Z

commit 952f59b70f923cbe80b9adae8ae727b46aeb3569 parent c9fc3397fa1bcabe3f1daa8dd5e92de6916f3c90 Author: Andrew Laack Date: Wed, 9 Jul 2025 13:01:18 -0500 Completed task scheduler

Completed task scheduler

2025-07-08T00:14:41Z

commit c9fc3397fa1bcabe3f1daa8dd5e92de6916f3c90 parent 3a65a9dbdfc3c1a39189d0e3b3f89153f3e6de8f Author: Andrew Laack Date: Mon, 7 Jul 2025 19:14:41 -0500 Completed task scheduler

Completed kth largest element in an array

2025-07-07T19:51:36Z

commit 3a65a9dbdfc3c1a39189d0e3b3f89153f3e6de8f parent 728eede3fb86c5359705e1581c57d98095bbfdb6 Author: Andrew Laack Date: Mon, 7 Jul 2025 14:51:36 -0500 Completed kth largest element in an array

Completed kth largest element in an array

2025-07-07T19:11:56Z

commit 728eede3fb86c5359705e1581c57d98095bbfdb6 parent e696de5e2d3edfa215be03e899454536a52b3fa9 Author: Andrew Laack Date: Mon, 7 Jul 2025 14:11:56 -0500 Completed kth largest element in an array

Completed permutations

2025-07-07T17:16:44Z

commit e696de5e2d3edfa215be03e899454536a52b3fa9 parent fd4f7a82f5ff55496da9bea2c5b4e7fce736a2a6 Author: Andrew Laack Date: Mon, 7 Jul 2025 12:16:44 -0500 Completed permutations

Completed lru cache

2025-07-07T14:52:56Z

commit fd4f7a82f5ff55496da9bea2c5b4e7fce736a2a6 parent 58adb3a8e7e008cb69e0a55e05b8831ec93b42dc Author: Andrew Laack Date: Mon, 7 Jul 2025 09:52:56 -0500 Completed lru cache

Completed k closest points to origin

2025-07-07T14:13:33Z

commit 58adb3a8e7e008cb69e0a55e05b8831ec93b42dc parent 2e7a99518b0d10618b9c88bf6d6c0379e97874d4 Author: Andrew Laack Date: Mon, 7 Jul 2025 09:13:33 -0500 Completed k closest points to origin

Reformatted all files

2025-07-04T16:56:34Z

commit 2e7a99518b0d10618b9c88bf6d6c0379e97874d4 parent 9674c7aad3941e9a17f752674e2db1ee6a32b240 Author: Andrew Laack Date: Fri, 4 Jul 2025 11:56:34 -0500 Reformatted all files

Completed last stone weight

2025-07-04T16:55:04Z

commit 9674c7aad3941e9a17f752674e2db1ee6a32b240 parent e4a43d6ce64312d5165af31765e0ea701a6c4445 Author: Andrew Laack Date: Fri, 4 Jul 2025 11:55:04 -0500 Completed last stone weight

Completed kth largest element in a stream

2025-07-04T15:20:32Z

commit e4a43d6ce64312d5165af31765e0ea701a6c4445 parent b4d9b4612cabe498885a393547080c5d24a20efd Author: Andrew Laack Date: Fri, 4 Jul 2025 10:20:32 -0500 Completed kth largest element in a stream

Completed find the k th character in string game i

2025-07-03T15:55:32Z

commit b4d9b4612cabe498885a393547080c5d24a20efd parent 3af89b9dfda7d2120470b2023b0a7a71b639f216 Author: Andrew Laack Date: Thu, 3 Jul 2025 10:55:32 -0500 Completed find the k th character in string game i

Completed kth largest element in a stream

2025-07-03T15:39:50Z

commit 3af89b9dfda7d2120470b2023b0a7a71b639f216 parent 574556ef3e31cf13453b8b54397410cfc1c01c36 Author: Andrew Laack Date: Thu, 3 Jul 2025 10:39:50 -0500 Completed kth largest element in a stream

Completed kth largest element in a stream

2025-07-03T15:31:38Z

commit 574556ef3e31cf13453b8b54397410cfc1c01c36 parent 4051ad7047233180411f610e43be80af6a13695d Author: Andrew Laack Date: Thu, 3 Jul 2025 10:31:38 -0500 Completed kth largest element in a stream

Completed kth largest element in a stream

2025-07-02T19:32:26Z

commit 4051ad7047233180411f610e43be80af6a13695d parent 3eac7b343ae42dd569977f371a49f2e089820810 Author: Andrew Laack Date: Wed, 2 Jul 2025 14:32:26 -0500 Completed kth largest element in a stream

Completed kth largest element in a stream

2025-07-02T15:54:46Z

commit 3eac7b343ae42dd569977f371a49f2e089820810 parent 7e28157058cc4aa3931accbd6e9ab27ca362dfc8 Author: Andrew Laack Date: Wed, 2 Jul 2025 10:54:46 -0500 Completed kth largest element in a stream

Completed kth largest element in a stream

2025-07-02T15:54:23Z

commit 7e28157058cc4aa3931accbd6e9ab27ca362dfc8 parent 9e5d40f38a38eccc61e32fce3c0d8519d6e371e4 Author: Andrew Laack Date: Wed, 2 Jul 2025 10:54:23 -0500 Completed kth largest element in a stream

Completed combine two tables

2025-07-02T15:23:23Z

commit 9e5d40f38a38eccc61e32fce3c0d8519d6e371e4 parent b1449e80d4e7d7f06966fce6edfe775cbd64f49e Author: Andrew Laack Date: Wed, 2 Jul 2025 10:23:23 -0500 Completed combine two tables

Completed find-the-index-of-the-first-occurrence-in-a-string/find-the-iV2.py

2025-07-02T15:18:38Z

commit b1449e80d4e7d7f06966fce6edfe775cbd64f49e parent 8c9a3b0fc07b26573deb58c63cedc3f0653a8bc4 Author: Andrew Laack Date: Wed, 2 Jul 2025 10:18:38 -0500 Completed find-the-index-of-the-first-occurrence-in-a-string/find-the-iV2.py

Completed https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/submissions/1683990217/

2025-07-02T15:11:42Z

commit 8c9a3b0fc07b26573deb58c63cedc3f0653a8bc4 parent 4a255da271b67eeb8b8da3e0d37beeff2f148f33 Author: Andrew Laack Date: Wed, 2 Jul 2025 10:11:42 -0500 Completed https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/submissions/1683990217/

Completed a few more problems (daily + trie + backtracking)

2025-07-01T13:48:54Z

commit 4a255da271b67eeb8b8da3e0d37beeff2f148f33 parent 69371fbc320a52a080ef462ffc2148fbeb2102b4 Author: Andrew Laack Date: Tue, 1 Jul 2025 08:48:54 -0500 Completed a few more problems (daily + trie + backtracking)

Finished more problems. The problems were primarily tree problems.

2025-06-30T15:30:19Z

commit 69371fbc320a52a080ef462ffc2148fbeb2102b4 parent 618aeaf7949007df444f6f73de0c0a2c85fcd097 Author: Andrew Laack Date: Mon, 30 Jun 2025 10:30:19 -0500 Finished more problems. The problems were primarily tree problems.

Completed 2 more problems

2025-06-27T23:24:21Z

commit 618aeaf7949007df444f6f73de0c0a2c85fcd097 parent 4359a7cf6ee7bd279e92d1a1422660a0456e5053 Author: Andrew Laack Date: Fri, 27 Jun 2025 18:24:21 -0500 Completed 2 more problems

Finished another graph problem

2025-06-27T02:00:31Z

commit 4359a7cf6ee7bd279e92d1a1422660a0456e5053 parent fe75d78dc5802107587993036061f9e2d99b9d0e Author: Andrew Laack Date: Thu, 26 Jun 2025 21:00:31 -0500 Finished another graph problem

Completed 5 more lc problems

2025-06-24T14:45:28Z

commit fe75d78dc5802107587993036061f9e2d99b9d0e parent bca0cf9d05d7ff5f77d552eb6fb56bacff8190c3 Author: Andrew Laack Date: Tue, 24 Jun 2025 09:45:28 -0500 Completed 5 more lc problems

Finished a bunch more neetcode

2025-06-14T19:09:00Z

commit bca0cf9d05d7ff5f77d552eb6fb56bacff8190c3 parent d3f0506fd71be78dc95a09a173281783ec842c69 Author: Andrew Laack Date: Sat, 14 Jun 2025 14:09:00 -0500 Finished a bunch more neetcode

Completed 4 more neetcode

2025-06-13T23:02:54Z

commit d3f0506fd71be78dc95a09a173281783ec842c69 parent a4d22b3edc2fef7248cb54af161eac2ed5e230b5 Author: Andrew Laack Date: Fri, 13 Jun 2025 18:02:54 -0500 Completed 4 more neetcode

Finished banana problem...

2025-06-13T01:56:20Z

commit a4d22b3edc2fef7248cb54af161eac2ed5e230b5 parent d6685394d4975bbc29528490dd2ce179f82ef813 Author: Andrew Laack Date: Thu, 12 Jun 2025 20:56:20 -0500 Finished banana problem...

Removed all binarys (oops) and updated gitignore.

2025-06-12T02:44:35Z

commit d6685394d4975bbc29528490dd2ce179f82ef813 parent ea03a9e2e460fe9b4654b0385b803d7b4fc4e6a1 Author: Andrew Laack Date: Wed, 11 Jun 2025 21:44:35 -0500 Removed all binarys (oops) and updated gitignore.

Completed a few more problems

2025-06-12T02:42:19Z

commit ea03a9e2e460fe9b4654b0385b803d7b4fc4e6a1 parent d5703d1554710e7ceda6b0e10d6edfdf6b67c85e Author: Andrew Laack Date: Wed, 11 Jun 2025 21:42:19 -0500 Completed a few more problems

Did another

2025-01-04T08:34:27Z

commit d5703d1554710e7ceda6b0e10d6edfdf6b67c85e parent 93e048ec42fa5029dc96c8fbea108dae70d9a74b Author: AndrewLockVI Date: Sat, 4 Jan 2025 02:34:27 -0600 Did another

Completed squares of a sorted array problem

2024-03-02T01:45:08Z

commit 93e048ec42fa5029dc96c8fbea108dae70d9a74b parent 243edc5f68c4685328e72ebcc3249cb2848a5faf Author: AndrewLockVI Date: Fri, 1 Mar 2024 19:45:08 -0600 Completed squares of a sorted array problem

Completed max odd binary number again

2024-03-01T04:20:49Z

commit 243edc5f68c4685328e72ebcc3249cb2848a5faf parent 4ba3bdeecd77fe3b1eb3353cb5107d9b94e982e4 Author: AndrewLockVI Date: Thu, 29 Feb 2024 22:20:49 -0600 Completed max odd binary number again

Completed maximum odd binary number

2024-03-01T04:09:53Z

commit 4ba3bdeecd77fe3b1eb3353cb5107d9b94e982e4 parent 8bc31b4264fee36780ace2cf92fffb9cf4d18113 Author: AndrewLockVI Date: Thu, 29 Feb 2024 22:09:53 -0600 Completed maximum odd binary number

Even odd tree

2024-02-29T02:26:12Z

commit 8bc31b4264fee36780ace2cf92fffb9cf4d18113 parent 1baf62c0c3ceadbf511a3eb3e320612d853e4f4b Author: AndrewLockVI Date: Wed, 28 Feb 2024 20:26:12 -0600 Even odd tree

Completed rank scores

2023-08-22T02:37:13Z

commit 1baf62c0c3ceadbf511a3eb3e320612d853e4f4b parent 42cde14c110d14f86d9e5a94034c10ff4d990485 Author: AndrewLockVI Date: Mon, 21 Aug 2023 21:37:13 -0500 Completed rank scores

Completed product sales analysis iii

2023-08-07T22:40:27Z

commit 42cde14c110d14f86d9e5a94034c10ff4d990485 parent 38732f4d6ae0accd7d912469820bf378d2d62916 Author: AndrewLockVI Date: Mon, 7 Aug 2023 17:40:27 -0500 Completed product sales analysis iii

Update

2023-08-07T03:27:14Z

commit 38732f4d6ae0accd7d912469820bf378d2d62916 parent df3ab0fa2da61ed63d42394f2c8864ba1ed4549d Author: AndrewLockVI Date: Sun, 6 Aug 2023 22:27:14 -0500 Update

Updated

2023-08-06T03:16:13Z

commit df3ab0fa2da61ed63d42394f2c8864ba1ed4549d parent a9e27ace8c02fd02e58dba56e7605fa7a65ba7e3 Author: AndrewLockVI Date: Sat, 5 Aug 2023 22:16:13 -0500 Updated

Completed problem

2023-08-05T04:02:40Z

commit a9e27ace8c02fd02e58dba56e7605fa7a65ba7e3 parent c14b800c325a37b8635f4c613841a0208a593ccb Author: AndrewLockVI Date: Fri, 4 Aug 2023 23:02:40 -0500 Completed problem

COmpleted

2023-08-05T04:02:04Z

commit c14b800c325a37b8635f4c613841a0208a593ccb parent 035a142bec1c976efd6a226dc0fa9e1aa6056e96 Author: AndrewLockVI Date: Fri, 4 Aug 2023 23:02:04 -0500 COmpleted

updated

2023-07-30T03:19:33Z

commit 035a142bec1c976efd6a226dc0fa9e1aa6056e96 parent d274becd0d1f367aeb97244092e06710f554dfa5 Author: AndrewLockVI Date: Sat, 29 Jul 2023 22:19:33 -0500 updated

Refactored

2023-07-29T03:06:05Z

commit d274becd0d1f367aeb97244092e06710f554dfa5 parent 0b31c9badf4a2d803fd0f1aabf7d5a842f6308f8 Author: AndrewLockVI Date: Fri, 28 Jul 2023 22:06:05 -0500 Refactored

Completed employees reporting to managers using mySQL

2023-07-23T20:15:55Z

commit 0b31c9badf4a2d803fd0f1aabf7d5a842f6308f8 parent 53542dcab5d4a4410323c78d69d5a617b7892d8b Author: AndrewLockVI Date: Sun, 23 Jul 2023 15:15:55 -0500 Completed employees reporting to managers using mySQL

Completed department highest salary using mysql

2023-07-18T23:04:03Z

commit 53542dcab5d4a4410323c78d69d5a617b7892d8b parent 96cd6902aed35f56bb94e696a1f750495e114e72 Author: AndrewLockVI Date: Tue, 18 Jul 2023 18:04:03 -0500 Completed department highest salary using mysql

Completed employees missing information using sql

2023-07-16T22:38:50Z

commit 96cd6902aed35f56bb94e696a1f750495e114e72 parent d198454f34a268b9ad3993235797e04165e1ec23 Author: AndrewLockVI Date: Sun, 16 Jul 2023 17:38:50 -0500 Completed employees missing information using sql

Completed calculate special bonus using mySQL

2023-07-16T01:19:30Z

commit d198454f34a268b9ad3993235797e04165e1ec23 parent 7eb314699d624efe9643cc6cd675503932745f71 Author: AndrewLockVI Date: Sat, 15 Jul 2023 20:19:30 -0500 Completed calculate special bonus using mySQL

Completed confirmation rate using mySQL

2023-07-15T00:12:40Z

commit 7eb314699d624efe9643cc6cd675503932745f71 parent 2376d6f51a7d306c27626a75effb2c13398b92be Author: AndrewLockVI Date: Fri, 14 Jul 2023 19:12:40 -0500 Completed confirmation rate using mySQL

algorithms, branch HEAD

Removed visualizations dir

Updated gitignore

Updated prim visualization, added merkle tree to plan, fixed readme, did subtree encoding lc problem, did dp problem, and graph translation problem

Moved directories to correct locations

Renamed lc/ -> leetcode/

Updated readme, updated plan

Quickselect

Two problems from contest

Some cf work

Refactoring

Did an assortment of problems and revised segment tree to have O(logn) updates

Naive segment tree without optimized updates

Completed some union find problems

cpp and python permutation problem

Updated code to run forever and to output a nice background image.

Updated plan

Visualization of prim's algorithm, palindromic substring leetcode problem, added plan

Prefix sum start

Another kahn's algorithm problem

Continued working on kahn's algorithm / top sort problems

Topological sort + MHT

Better top sort approach with 1 less special case

Topological sort in c++

Binary tree ordering

More problems

MST in python and subsets in c++

Python solution

More problems

Completed a few more. I should read directions better...

Did a few leetcode problems in python

AoC 2025 problem 1

Some leetcode problems

Completed delete characters to make fancy string

Completed clone graph

Completed max area of island

Completed number of islands

Completed letter combinations of a phone number

Completed palindrome partitioning

Completed find the maximum length of valid subsequence i

Completed first missing positive

Completed missing number

Completed valid word

Completed word search

Completed subsets ii

Completed number of 1 bits

Completed number of 1 bits

Completed subsets ii

Completed non overlapping intervals

Completed non overlapping intervals

Completed merge intervals

Completed insert interval

Completed insert interval

Completed design twitter

Completed task scheduler

Completed task scheduler

Completed kth largest element in an array

Completed kth largest element in an array

Completed permutations

Completed lru cache

Completed k closest points to origin

Reformatted all files

Completed last stone weight

Completed kth largest element in a stream

Completed find the k th character in string game i

Completed kth largest element in a stream

Completed kth largest element in a stream

Completed kth largest element in a stream

Completed kth largest element in a stream

Completed kth largest element in a stream

Completed combine two tables

Completed find-the-index-of-the-first-occurrence-in-a-string/find-the-iV2.py

Completed https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/submissions/1683990217/

Completed a few more problems (daily + trie + backtracking)

Finished more problems. The problems were primarily tree problems.

Completed 2 more problems

Finished another graph problem

Completed 5 more lc problems

Finished a bunch more neetcode

Completed 4 more neetcode