python Keras使用仿AlexNet針對oxflower達到100趴的辨識率實測

C++BFS走訪 level排序與DFS cycle長度計數解Leetcode 2471 Minimum Number of Operatio...

C++BFS走訪 level排序與DFS cycle長度計數解Leetcode 2471  Minimum Number of Operations to Sort a Binary Tree by Level

解圖論問題Leetcode 2471. Minimum Number of Operations to Sort a Binary Tree by Level，這不算稀奇，但當中還用到置換群(permutation group)的概念就比較特別。

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Solve the graph theory problem Leetcode 2471. Minimum Number of Operations to Sort a Binary Tree by Level. This is not unusual, but the concept of permutation group is also used in it, which is quite special.

[codes on Leetcode]https://leetcode.com/problems/minimum-number-of-operations-to-sort-a-binary-tree-by-level/solutions/6175677/bsf-levelwise-transversal-compare-with-s-l164/

[Tree Graph Playlist]https://www.youtube.com/watch?v=bna7aw7dkPY&list=PLYRlUBnWnd5Kt0-3un43cwY6yT_il8NWe

2024 Keras跑仿AlexNet辨識oxflower17處理在Colab上的諸多坑

2024 teachable machine訓練好的Keras模型在Colab上執行辨識

2024pandas與黃金、外匯匯率之二pyplot, seaborn繪圖, numpy回歸分析

Python C C++ 2 pointer速解Leetcode 2337 Move Pieces to Obtain a String

Python C C++ 2 pointer速解Leetcode 2337  Move Pieces to Obtain a String

多日Leetcode的問題都可用2-pointer法來解，今日2337. Move Pieces to Obtain a String也不例外，這次就用C/C++/Python三個語言來解[Python解請進]

Python C++ sliding window速解Leetcode 1652 defuse the bomb

Leetcode的1652. Defuse the Bomb是絕佳的練習題，特別是針對Python的使用者，雖說是sliding window 是簡單的那種，還可練習loop, slicing, minus index etc .https://leetcode.com/problems/defuse-the-bomb/solutions/6056351/sliding-window-for-k-0-or-k-0-beats-100/

bitset C++ python解Leetcode 3133 Minimum Array End

bitset C++ python解Leetcode 3133  Minimum Array End

簡單地說就是把x和n-1的二進位塞成一個數字

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Roughly speeaking, "pack" the binary expressions of x & n-1 into one number

XOR prefix sum C++ python解Leetcode 1829 Maximum XOR for Each Query

XOR prefixsum CPP python解Leetcode 1829  Maximum XOR for Each Query

其實這裡考慮的是元素個數為2^maximumBit的交換群，運算子為XOR。

[Python code請進]

2 pointer Python C++解Leetcode 3163 String Compression III

2 pointer Python C++解Leetcode 3163  String Compression III

[codes on Leetcode]https://leetcode.com/problems/string-compression-iii/solutions/6004059/string-with-2-pointers-3ms-beats-99-15/

[2-pointer/Sliding window play list]https://www.youtube.com/watch?v=--IlX3x54nk&list=PLYRlUBnWnd5KrCfs7qCFb-Bvn7dvnakFy