LeetCode solution: Substring with Concatenation of All Words

... 题要求 You are given a string, s, and a list of words,words, that are all of the same length. Find all starting indices of substring(s) in s that is a concatenation of each word in words exactly once and without any intervening characters. Example 1: Input: s = "barfoothefoobarman", words ...


How important is the pattern in the end

... The pattern of this age I saw this sentence on the Internet a few days ago: Looking down from the second floor, the eyes are full of rubbish, looking down from the 20th floor, then It is scenery. At this age, there is a new empathy for this sentence. Before I was at 大学, I saw my...


ARM NEON commonly used function summary

... original address: https://blog.csdn.net/may0324/article/details/72847800 NEON technology is a 128-bit SIMD (single-instruction, multi-data) architecture extension of the ARM CortexTM-A family of processors designed to provide flexible, powerful acceleration for consumer multimedia...


Guava (six)

... [string processing] First, the Joiner connector Joiner is used to connect string sequences through the specified separators. In addition, some property settings can make the connection of strings easier. String join = Joiner.on(",").skipNulls().join(Lists.newArrayList(1, 2, null, 3)); /...


The reset mode of the one-chip computer

... 单片机电路 reset circuit principle introduction /******************************** ************************* Analysis of a ************************* ************************************************** ********/ 一, high level reset The working principle of the reset circuit is introduced in the...


St-link usb communication error

... first learning stm32 from a treasure to make stm32f407vet6 board and st-link v2. board on the JTAG / SWD interface: st-link v2 interface : 连接图: Program compilation is not easy to compile, just started downloading internal command error This error.. This error tried various methods: The...


Raspberry Pi SPI Network Card Configuration Tutorial

... Submission from Archer, thanks~ Recently, I want to pick up my hand, so I bought a raspberry pie Zero and SPI interface enc28j60 chip on the Internet. The Ethernet card then started tossing. Fortunately, the Raspberry Pi is connected to the SPI network card is not without precedent, I...


ESP8266_RTOS_SDK compile and run

... ESP8266 built-in Tensilica L106, 32-bit satellite MCU with ultra-low power 16-bit RSIC. The CPU clock speed is 80MHZ, up to 160MHZ, and supports real-time RTOS operating system. The official SDK is divided into NON-OS version and RTOS version. The RTOS version SDK uses FreeRTOS real...


A BLE-MIDI Bluetooth MIDI module

... What is BLE-MIDI? In 2014, Apple designed a MIDI protocol that supports Bluetooth Low Energy (BLE), and then MMA members listed the agreement as an industry standard in June 2015. This has the BLE-MIDI protocol. Simply put, it is the MIDI protocol that supports BLE. BLE-MIDI Bluetooth...


A Novel Task Allocation for Maximizing Reliability Considering Fault-Tolerant in VANET ... Study Notes

... A Novel Task Allocation for Maximizing Reliability Considering Fault-Tolerant in VANET Real Time Systems 1. This article combines SDN and Fog Computing to propose an HSFV architecture. Modeled by exponential distribution, and the modeling results are represented as an optimization...