I have a list like [[1,4],[3,9],[2,5],[3,2]]. How can I sort the list
based on the second value in the item?
That is,
I want the list to be:
[[3,2],[1,4],[2,5],[3,9]]
(Got a comm error trying to post first time, sorry if this
is a duplicate)
New to Python, so please bear with me.
>>> import sys
>>> print sys.modules.keys() # works fine
>>>...
I'm a Perl programmer learning Python (up to chapter 7 in Learning
Python, so go easy on me :-) and I find that I look to do things in
Python the way I would do them in Perl. In Perl functions and...
Hi,
I try to implement quick sort. I sort vectors by their first value.
10 2 3 4
9 3 5 6
10 4 5 6
must be
9 3 5 6
10 2 3 4
10 4 5 6
The prog works great on maybe 500 vectors, but I have an...
Sort a List
Xah Lee, 200510
In this page, we show how to sort a list in Python & Perl and also
discuss some math of sort.
To sort a list in Python, use the “sort” method. For example:
...
// Merge sort using circular linked list
// By Jason Hall <booser108@yahoo.com>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <math.h>
//#define debug
I have six textbox controls on my webform that allows the user to enter any
numbers from 1 to 25 in any order. However, I would like to sort those
numbers from least to greatest before sending them...
Hello. I recently noticed that the Sort method of the .NET ArrayList class
does not behave as I expected. I expect 'A' < '_' < 'a' (as per their ascii
values) but what I got was the opposite....
Hi,
I have a generic list with a some objects of a particular class in it.
I have implemented a IComparer for the the class and pass it to the
List.
The list.sort method works fine when the value...
This is an example of using multiple comparison criteria for IComparer/
Compare/CompareTo for List<and Array.
Adapted from David Hayden's tutorial found on the net, but he used
ArrayList so the...
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
This is the data of csv file
1 2 3
1 2 3
1 2 3
1 2 3
2 3
2 3
3
the lengths should be different i have to store the data by column-wise with in the specific length.
suppose the i have to...
There are some requirements for setting up RAID:
1. The motherboard and BIOS support RAID configuration.
2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers,...
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development projectplanning, coding, testing,...
