In the workplace, we often have the need to count data based on specific conditions. For example, counting the number of people in a certain department, or judging whether records that meet the conditions exist in the data table. At this time, the countif function is simply not easy to use. So, today I will […]
Tag: count
“I work in technology in Taotian” If you are a merchant in Five Elements, how do you settle the accounts?
Let me tell you about the financial development of Taotiantao factory. Financial development is so unfamiliar, what is it? Okay, now if you are a merchant in the Five Elements, and you sell things on Taobao. When a consumer buys something from you, does Taobao need to pay you to settle the transaction order? In […]
Multiple instance problems encountered by SpringBoot integrating scheduled tasks
Talk part That’s right. I improved the logging of scheduled tasks a few days ago. Today I switched servers, deployed one more node, and used nginx load balancing. However, when I checked the logs, I found the following situation. That’s bad, the legendary multi-instance problem has appeared. Today we will talk about how to do […]
Problems encountered when maintaining domain name cache within the application
In a recent project I participated in, I encountered a series of problems that relied on DNS servers to resolve external business clusters. The remote business cluster provides business services based on the HTTP/HTTPS protocol. The cluster contains multiple business nodes. In the current solution, domain names are configured on the DNS server to point […]
C# OpenCvSharp corn kernel counting
Effect Project Code using OpenCvSharp; using System; using System.Drawing; using System.Text; using System.Windows.Forms; namespace OpenCvSharp_Demo { public partial class frmMain : Form { public frmMain() { InitializeComponent(); } string fileFilter = “*.*|*.bmp;*.jpg;*.jpeg;*.tiff;*.tiff;*.png”; string image_path = “”; DateTime dt1 = DateTime.Now; DateTime dt2 = DateTime.Now; Mat image; Mat result_image; StringBuilder sb = new StringBuilder(); private void […]
AtCoder Beginner Contest 327 G. Many Good Tuple Problems (counting of labeled bipartite pictures + placing differentiated balls into differentiated boxes)
Title An original sequence x with length n (n
Data analysis tool: Application skills of Python counter Counter
More learning content Counter is a powerful tool provided in the collections module of the Python standard library, which is used to count the occurrences of hashable objects. The use of counters is very flexible and can solve various counting and statistical problems. This article introduces counters in Python, including their basic usage, advanced features, […]
FreeRTOS binary semaphores and counting semaphores
1. Binary semaphore and counting semaphore binary semaphore concept Queue of length 1 There is no need to care about the storage content, just whether it is empty or not. Application scenarios Synchronization of tasks and tasks, tasks and interrupts block When the task obtains the semaphore, if the semaphore is empty, it enters the […]
Solve the problems encountered by UniAD when running under high versions of CUDA and pytorch
UniADhttps://github.com/OpenDriveLab/UniAD is oriented to driving planning set perception (target detection and tracking) and mapping (not mapping the environment like SLAM, but real-time panoramic segmentation of roads and isolation zones in images) It is a unified large model that integrates multi-task modules such as trajectory planning and occupancy prediction. The installation instructions on the official website […]
LPA3588 Pitfalls encountered when using apt in Ubuntu20.04
LPA3588 Pitfalls encountered when using apt in Ubuntu20.04 I’ve made a fool of myself today I just got a LPA3588 board with Ubuntu20.04 pre-installed. First, based on my previous experience of using ubuntu on the x86 architecture, I went to the Huawei mirror source and replaced the /etc/apt/sources.list of ubuntu-ports without any brain. It went […]