optimization

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Python tree traversal recursion depth exceeded

I have a segment tree which holds data for a range of numbers (data structure chosen here). Here\'s the code:[详细]

2023-04-11 15:14 分类：问答
More Efficient Way To Write MySQL Query?

My site has suddenly started spitting out the following error: \"Incorrect key file for table \'/tmp/#sql_645a_1.M开发者_运维知识库YI\'; try to repair it\"[详细]

2023-04-11 15:02 分类：问答
Will the class method call be optimized out in the for loop?

code for (size_t i = 0; i < myClassObject.Method(); ++i) some work; I am wondering if the compiler will optimize out the method call and turn it into this?[详细]

2023-04-11 13:37 分类：问答
Java BigInteger Memory Optimization

I\'m trying to find LCM of given N numbers. But this code of mine takes more than 32Mb memory. What kind of optimization can I perform here?[详细]

2023-04-11 13:19 分类：问答
Cache webservices by argument passing to the funciton

I wonder how can I cache webservice returned data by its passed argument? For example: [WebMethod] [ScriptMethod(ResponseFormat = ResponseFormat.Json)][详细]

2023-04-11 04:49 分类：问答
Optimising partial dictionary key match

I have a dictionary which uses a 4-tuple as it\'s key. I need to find all the keys in the dictionary which partially match some other tuple. I have some code which does this but it\'s slow and needs o[详细]

2023-04-10 22:37 分类：问答
finding nearest positive semi-definite correlation matrix

Is there an R function or DLL that calculates a nearest positive semi-definite correlation matrix? Finding the nearest positive semi-definite matrix is a 开发者_运维问答well-documented common problem[详细]

2023-04-10 17:57 分类：问答
MySQL - Optimizing column referencing?

I\'m having difficulty trying to form the actual question I have, so hopefully I can get the point across with visual aid.[详细]

2023-04-10 16:40 分类：问答
How to reduce file size of g++ compiled shared object?

I have a shared object (.so) file compiled with g++, in Windows, its size about 2MB (.DLL, compiled with Visual Studio 2008, /O2), but in Linux, its size is 10MB if compiled with g++ -O2 flag.[详细]

2023-04-10 16:23 分类：问答
MATLAB parallel computing setup

I have a quad core computer; and I use the parallel computing toolbox. I set different number for the \"worker\" number in the parallel computing setting, for example 2,4,8..............[详细]

2023-04-10 15:38 分类：问答