The problem is from codeforces: http://www.codeforces.com/problemset/problem/227/A The picture vividly illustrates the problem statement. Given 3 Points A, B and C, you are required to find out the direction. Read …
The problem is from codeforces: http://www.codeforces.com/problemset/problem/228/A The answer is to count the unique number of integers and substract from four. The SQL to the answer is: select 4 - …
Before Delphi 2007, sometimes you will have a warning showing up for lengthy functions, even if you have defined return value at the begining of the function, for example: …
Given two rectangles (as shown in the following figure), , are lower-left points while and are top-right points. We want to find out whether these two rectangles overlap each …
The remainder computation on two integers a and b can be normally simply expressed as %, or mod in most of the current modern programming languages. The process of …
September 19, 2012
batch script, beginner, DOS, I/O File, implementation, programming languages, string, tricks, windows, windows command shell
Previously, I have programmed some scripts in Windows Batch, and these can be found in the github. For example, the rot13.bat rotates given input string (command line parameters) to …