编译原理转四元式

EWB做的多功能数字钟 由振荡器输出稳定的高频脉冲信号作为时间基准，经分频器输出标准的秒脉冲，秒计数器满60向分计数器进位，分计数器满60向小时计数器进位，小时计数器按“12翻1”规律计数，计数器经译码器送到显示器；计数出现误差可用校时电路进行校时、校分、校秒， 可发挥部分：使闹钟具有可整点报时与定时闹钟的功能。 -EWB done by the multi-function digital clock oscillator output stable high frequency pulse signal as a time reference. Frequency Divider output by the standards of seconds pulse, aged 60 seconds to counter-counter rounding, Counter-to-60-hour counter rounding, by the Counter-hour "12 over a" law count, Counter by the decoder to display; Counting errors school circuit can be used for schools, school hours, school seconds to play : The alarm clock can be made with whole point regular alarm clock and timer functions.

For solving the following problem: "There is No Free Lunch" Time Limit: 1 Second Memory Limit: 32768 KB One day, CYJJ found an interesting piece of commercial from newspaper: the Cyber-restaurant was offering a kind of "Lunch Special" which was said that one could "buy one get two for free". That is, if you buy one of the dishes on their menu, denoted by di with price pi , you may get the two neighboring dishes di-1 and di+1 for free! If you pick up d1, then you may get d2 and the last one dn for free, and if you choose the last one dn, you may get dn-1 and d1 for free. However, after investigation CYJJ realized that there was no free lunch at all. The price pi of the i-th dish was actually calculated by adding up twice the cost ci of the dish and half of the costs of the two "free" dishes. Now given all the prices on the menu, you are asked to help CYJJ find the cost of each of the dishes.

最新的Lingo11,不过是试用版的，希望对大家有用-Latest Lingo11, but a trial version, and I hope useful for all of us

DSP应用实例(一)--轻松实现BT多点下载 源码-DSP Applications (1) easy to realize multi-point BT download source

JTAG Tools is a software package which enables working with JTAG-aware (IEEE 1149.1) hardware devices (parts) and boards through JTAG adapter.

很有用的 东西 啊 下来看看事实上怎么还不够啊 真是郁闷 -Ah useful things down and see how in fact is not enough ah really depressing

一个简单好好用的捕图片转换ico格式的小工具-a simple catch a good picture of ico format conversion tool for the small

一种窄带干扰抑制的非线性自适应预测滤波算法！-a narrowband interference suppression filter nonlinear adaptive prediction algorithm!

一个C++控制台的井字过三关小游戏,是大家学习的好材料-Tic-Tac-Toe Plays the game of tic-tac-toe against a human opponent Uses pointers instead of refernces for function parameters

U盘控制芯片CH331,CH331 是一个小容量U 盘的控制芯片，只要外加一个串行存储器芯片，就可以实现2KB 到512KB 的小容量U 盘。-U disk controller IC CH331, CH331 is a small-capacity USB control chip, As long as plus a serial memory chips, we would achieve 2 KB to 512 KB of small U disk capacity.