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c++ - std::remove_if GCC implementation isn't efficient?

From another question here there seems to be evidence, that GCC's implementation of std::remove_if doesn't provide ... for the given problem? See Question&Answers more detail:os...

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merge - Two by two matching between dataframes in r

I need to combine two data frames (df1 and df2) by matching up two site columns of each data frame to produce a third ... C 70 30 3 B C 80 10 See Question&Answers more detail:os...

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javascript - Java permutation algorithm

So I have this code now, and in input I have in ascending order my name's letters "ahimrsu". I need to show up ... ; </script> </body> </html> See Question&Answers more detail:os...

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php - How to assign rank to students to where they share the highest rank when their scores equal?

I have code that ranks students and it works, but not as I intended -- if two or more students score the same score it ... '] . "<br><br>"; } See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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sql - Return rows only if they are different that previous days value

sales -id -user_id -amount -datetime the sales table gets a new record for each user_id daily. i want a select ... . Hope this clears it up. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - How to convert nested array pairs to objects in an array

I have been tasked to convert the following array to an array of object pairs: var arr = [ [ ['firstName', 'Joe' ... age: 36, role: 'manager'} ] See Question&Answers more detail:os...

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How to get the reference alive to the older one, when there is a second exception in Ruby?

begin raise "explosion" rescue p $! raise "Are you mad" p $! end # #<RuntimeError: explosion> # ... in Smokey situation with my queries. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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Listing specific file name in java

I want to list and print them out my src folder. But program is listing all files like .bin .classpat .project. ... e){ e.printStackTrace(); } See Question&Answers more detail:os...

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String split comma and parenthisis-JAVA

Convert the string: "(id,created,employee(id,firstname,employeeType(id), lastname),location)" to the ... with using regular expression See Question&Answers more detail:os...

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c - Find the number of connected objects in a given 2-D binary matrix

Find number of connected objects from a given 2d matrix Sample Input & Output1: Enter number of rows: 5 Enter ... of connected objects = 2 See Question&Answers more detail:os...

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How come command line isn't recognizing this java command?

I enter java -classpath C:lahblahblahsoftware_engineeringcs2.jar as part of a suggestion here: Why does my IDE ... specified image How come? See Question&Answers more detail:os...

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c# - How to Pass List<> to stored procedure

I am trying to pass a list to database (SQL Server 2008 R2) using user defined table types but get some errors ... BEGIN SELECT * FROM @dt END See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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angular - HTTP call using Observable not working

In the function below, I have two calls to the server, one using Observable and the other using Promise. The call ... , response.json()) }) } See Question&Answers more detail:os...

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css - How can i make this wave effect on both bottom and top

I would like the bottom wave effect on top too! Can anyone show me how it's done. The effect should look the same on ... </div> </body> </html> See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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java - How to pass json in request using retrofit services in android studio

How Can I pass the request data in these type of request in retrofit. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Get last 6 months from in Jquery

How can I get the date range in jquery from current date, I have done following in java, need to replicate it in jquery ... ss'Z'')+'+TO+NOW]'; See Question&Answers more detail:os...

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javascript - Having issues in filtering with product list with data attributes

<div id="prod"> <div class="content" data-brand="Andrew" data-price="1000" data-store="JCPenny">Andrew</div><br ... me... Please help on this... See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Get the key of a nested object

I need a simple method to get the key of a nested object, e.g. description. This is my structure: let data = [ ... , description: "tbd3" }] } ]; See Question&Answers more detail:os...

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excel - Write prime numbers between 1 to 100 through VBA coding

I found the below coding but its not working. Please share the more appropriate code for writing prime numbers in VBA ... n End If Next End Sub See Question&Answers more detail:os...

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c++ - ./a.out terminated . Garbage output due to smashing of stack . How to remove this error?

#include <iostream> #include <fstream> #include <cstring> using namespace std; typedef unsigned long int WORD; /* Should ... let the key be 111 See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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python - How to compare the attributes start with $ in 2 functions and display match or mismatch

My input file contain attributes if(match($OPTION_EnableDetails, "1") or match($OPTION_EnableDetails_juniper, "1")) { ... $ in nvp_add here? See Question&Answers more detail:os...

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regex - How to understand regular expression with python?

I'm new with python. Could anybody help me on how I can create a regular expression given a list of ... : female adjective, female noun). See Question&Answers more detail:os...

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What does this error mean ? "Expected an indented block" Python

My code is the following: def value(one,two): if one < two: return two else: return one Every time I ... the code, and still nothing happened. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c++ - ifstream can't find file

I'm trying to open a text file in c++ with ifstream but it won't locate the file even though the file is in ... it still can't find the file. See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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How to filter a list in Scala

I have a class Dog in Scala: case class Dog(age: Int) And a list with dogs like this: val dogs: List[Dog] ... can I do that? Many thanks! Vasco See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c - How to get the file's meta data in kernel space - linux 3.5

Given a file path, how can I get its meta data. Here is my problem: I have to truly hide a file (even with ... am working in linux kernel 3.5.4v See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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ios - multiline uibutton

How to set a multiline as title of a UIButton in iPhone programming ? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Something went wrong with passing pointer to a function

#include <cstdlib> #include <iostream> #include <Math.h> using namespace std; int stepCount,i,x,y,z,j,array1Size, ... right? Or do I not? See Question&Answers more detail:os...

asked Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

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