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BZOJ2038[2009 Country Training Team] small Z socks (hose)Test instructionsThe n socks are numbered from 1 to N, and each time you draw two from the socks numbered L to R, how much is the probability of pumping the same socks with the same

IIC Electrical characteristicsThe I²c (Inter intergrated circuit) bus is a two-wire serial bus developed by PHILPS Corporation to connect microcontrollers and peripherals.The I²C bus has only two bidirectional signal lines:Sda:serial Date Line Data

I. PrefaceHave not learned to take notes of their own habit, so in order to strengthen their knowledge in-depth understanding, decided to learn the notes written down, I hope to learn from you Daniel! Please treatise the wrong place! Thanks here!On

SQL Server Basics(1) Create a databaseThere are two ways to create a database, manually create and write SQL script creation, where I use a script to create a database called TSQLFundamentals2008. The script is as follows:View CodeWhile inserting

Without the standardization process involved, it is very difficult for programmers to develop an application that can be used in a variety of languages. If possible, the translation process can be done in the database, so that developers have a lot

Tian Ji--The Horse RacingDescriptionHere's a famousstory in Chinese.That was about2300 years ago. General Tian Ji is a high official in the country Qi. He Likesto play horse racing with the king and others.Both of Tian and the king has three horses

Tian Ji -- the horse racing Time limit:1000 ms Memory limit:32768kb 64bit Io format:% I64d & % i64usubmit status practice HDU 1052 DescriptionHere is a famous story in Chinese history. "That was about 2300 years ago. General Tian Ji was a high

Number of briquettes There is a heap of coal, which is made into a triangular pyramid. Specific: 1 on the first floor, The second layer is 3 (arranged into triangles), The third layer is 6 (arranged into triangles), Fourth floor 10 (arranged into

Following the training program of freshman year, I saw a tree array and learned it a year ago. I took a look and understood it right away.   Time Limit: 2000/1000 MS (Java/others) memory limit: 65536/32768 K (Java/Others)Total submission (s): 39849

Number of briquettesThere was a heap of briquettes, piled into triangular pyramid. Specific:1 on the first floor,The second Layer 3 (arranged into triangles),The third layer of 6 (arranged into triangles),Fourth layer 10 (arranged into triangles),...