RAG之NotebookLM操作DeckEdit解鎖文字與Keras辨識mnist手寫數字程式

RAG之NotebookLM操作DeckEdit解鎖文字與Keras辨識mnist手寫數字程式

解決NotebookLM產生簡報文字無法編輯的問題。

採用免費軟體DeckEdit解鎖文字

以Keras辨識mnist手寫數字程式為實際操作實例

黑柴犬進入AI世界，模仿SGD走進虛擬山谷

黑柴犬與玩具tiger 1戰車

Py3 C++ DP速解1320 Minimum Distance to Type a Word Using Two Fingers

Py3 C++ DP速解1320  Minimum Distance to Type a Word Using Two Fingers

這題確實有難度，最初的解答是3D DP，然後逐次化簡，化成2D後，大該就已經是極致了，不想用hash map，300x (26+1)也不大，0ms C++ code

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This problem is indeed challenging. The initial solution was 3D dynamic programming, which was then simplified to 2D, reaching its limit. I didn't want to use a hash map; 300x (26+1) isn't a large number. 0ms C++ code.

[codes on Leetcode]https://leetcode.com/problems/minimum-distance-to-type-a-word-using-two-fingers/solutions/7876562/2d-dp-reduced-spacebeats-100-by-anwenden-0lk6/

C++ unordered set PMR解Leetcode 874 Walking Robot Simulation

C++ unordered set PMR解Leetcode 874  Walking Robot Simulation

解Leetcode 874. Walking Robot Simulation因為constraints，只好用hashmap，C++ unordered_set是知名的慢，加上pmr可以快上幾倍 

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Solving LeetCode 874, Walking Robot Simulation, requires using a hashmap due to constraints. C++'s unordered_set is notoriously slow; adding PMR can speed it up several times.

[codes on Leetcode]https://leetcode.com/problems/walking-robot-simulation/solutions/7789910/hashset-using-pmr4ms-beats-9840-by-anwen-lzym/

黑柴犬走草山水圳AI動畫

黑柴犬與碧潭吊橋meta AI動畫

C++UnionFind與matrix分析解難題Leetcode 2573 Find the String with LCP

解難題Leetcode 2573. Find the String with LCP，其實重點是lcp非常特殊的矩陣，只要搞定lcp各項的關聯，如對稱性，對角線上值-1等特性，應該能解出。會先用Union-Find主要是其解法可針對更為廣義的題目，要快就用貪婪。

3D DP minmax解Leetcode 1594 Maximum Non Negative Product in a Matrix

黑柴犬正在操作enigma密碼機

Py3 C++位元處理與DP解Leetcode 1680 Concatenation of Consecutive Binary Numbers

Py3 C++位元處理與DP解Leetcode 1680  Concatenation of Consecutive Binary Numbers

這當然不是DP的問題，但透過DP的手法卻可以大幅減少計算時間

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This is certainly not a problem with dynamic programming (DP), but by using DP techniques, the computation time can be significantly reduced.

[codes on Leetcode]https://leetcode.com/problems/concatenation-of-consecutive-binary-numbers/solutions/7613841/left-shift-x-with-bitwidth-by-anwendeng-2akl/

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C++ Py3 bitmask速解Leetcode 762 Prime Number of Set Bits in Binary Representation

C++ Py3 bitmask速解Leetcode 762  Prime Number of Set Bits in Binary Representation

這段影片示範如何使用計數位元和位元遮罩(bit mask)，用幾行程式碼解決這個問題。

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this video shows how to use count bits & bitmask to solve this question in few lines. 

[codes on Leetcode]https://leetcode.com/problems/prime-number-of-set-bits-in-binary-representation/solutions/7595294/c-bits-count-vs-pascal-trianglebeats-100-2r67/

Py3 C++迴圈與計數解Leetcode 696 Count Binary Substrings

Py3 C++迴圈與計數解Leetcode 696  Count Binary Substrings

Leetcode 696. Count Binary Substrings雖然標示為easy，也沒那麼trivial，花了一番功夫才解出branchless C++。而一般回圈解倒是不難，但須要思考一下

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Leetcode 696. Count Binary Substrings, though marked as easy, isn't exactly trivial; it took me some effort to solve it in branchless C++. Solving the general loop problem isn't difficult, but it needs thinking.

[codes on Leetcode]https://leetcode.com/problems/count-binary-substrings/solutions/7590515/cout-the-successive-1s-0sbeats-100-by-an-7amm/

Py3 C++使用 4 hashmaps解Leetcode 3714 Longest Balanced Substring II

 

 不喜歡C++的unordered_map，主要的原因是慢，也不想重新刻一個好的hashmap，不過透過memory_resource中的工具，加快三倍速度，也能寫出簡易的beats 99%C++解答

py3 C++巢狀迴圈解Leetcode難題3640 Trionic Array II

py3 CPP巢狀迴圈解Leetcode難題3640  Trionic Array II

使用巢狀迴圈來解決 LeetCode 上的難題，就用類似解決簡單的題目的方法。

Lettcode 3637. Trionic Array I簡單問題解了，困難的類似題3640. Trionic Array II也用類似方法解了。不要小看怎麼用迴圈

C++ Py3用nth_element, nsmallest解Leetcode 3010 Divide an Array Into Subar...

C++ Py3用nth_element, nsmallest解Leetcode 3010  Divide an Array Into Subarrays With Minimum Cost I

問題簡單，但應該是同類問題入門，先提供幾個簡易解答

[Py3一行解請進]

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計數排序與greedy 2 pointer解Leetcode 1877 Minimize Maximum Pair Sum in Array

計數排序與greedy 2 pointer解Leetcode 1877  Minimize Maximum Pair Sum in Array 重點是理解為何Greedy方法可行，code很簡單，就排序sort, counting sort, radix sort都來一遍

[Py3 一行解請進]