python nsmallest與C++ nth_element解巧克力Leetcode2706 Buy Two Chocolates

python nsmallest與C++ nth_element解巧克力Leetcode2706  Buy Two Chocolates

python 1line solves Leetcode 1913 Maximum Product Difference Between Two Pairs

Python C++秒搞定Leetcode 242 Valid Anagram

Python C++秒搞定Leetcode 242  Valid Anagram。其實解這問題C++, Python都有1 line code，有興趣者請進:

從bag檔中擷取Ply檔，並用3D軟體開啟，C++程式讀取

C++ python binary search二元搜尋解Leetcode1287 Element Appearing More Than...

C++ python  binary  search二元搜尋解Leetcode1287  Element Appearing More Than 25% In Sorted Array。程式不難找到合用的套件就好，要會用C++的upper_bound, lower_bound或是python的bisect.bisect_right, bisect.bisect_left

[codes on Leetcode]https://leetcode.com/problems/element-appearing-more-than-25-in-sorted-array/solutions/4388365/c-python-frequency-count-vs-binary-search-0ms-beats-100/

[Leetcode playList]https://www.youtube.com/watch?v=0iFR8nafMWE&list=PLYRlUBnWnd5IdDHk2BjqXwesydU17z_xk

Python zip(*matrix) C++解Leetcode 867 Transpose Matrix

Python CPP解Leetcode 867  Transpose Matrix

Python C++等差數列解Leetcode1716 Calculate Money in Leetcode Bank

等差數列(Arithmetic sequence)絕對是基礎數學，Leetcode1716 Calculate Money in Leetcode Bank這題當然是用O(1)時間的解答方式。

C, python解leetcode 2264 Largest 3 Same Digit Number in String

Leetcode又是連續出數日簡單的問題2264. Largest 3-Same-Digit Number in String，然而簡單問題還要要用適當的方式來解，解法最好有延展性，就用類似sliding window的解法。

[codes on Leetcode]https://leetcode.com/problems/largest-3-same-digit-number-in-string/solutions/4359202/string-loop0ms-beats-100/

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C++ Python公式推導Prefix sum解Leetcode 1685 Sum of Absolute Differences in a...

C++ Python公式推導Prefix sum解Leetcode 1685  Sum of Absolute Differences in a Sorted Array

對於會用Σ處理公式的，Leetcode 1685. Sum of Absolute Differences in a Sorted Array這應算是Bill Gates口中簡單的數學，