FunZONE-4-Geeks

                      O ne day I was working on something and I needed to modify the configuration file on the server. So I had to navigate to all the way through nested directories and then finally edit the file. The requirement was quite frequent and every time I had to navigate to multiple directories. This post is about to simplify the above task. For example, We need to edit the following file. File path : /home/alex/Softwares/apache-tomcat-7.0.62/webapps/live-service/WEB-INF/classes/conf/database/database.conf We can do it by using the below command: alex:~$ vim /home/alex/Softwares/apache-tomcat-7.0.62/webapps/live-service/WEB-INF/classes/conf/database/database.conf If we count the nested directories, There are 10 directories We need to navigate through and It is cumbersome even we know the exact path of the file. We will try to do something which can reduce the effo...

                      T his article is about easiest way to perform read and write operation from file. File handling is one of the most important aspect of programming and it becomes more important when we do competitive programming. Here are some context when you need to deal with files in comptetive programming. 1) Some specific programming contests like Google Code Jam and Facebook Hacker Cup they provide a file for input. You have to read input from that file and write answers into a file and upload on server within limited time. 2) If you are trying to code for a problem. Suppose the problem was that a square matrix is given and you have to rotate the matrix by 90 degree clock-wise. First line of input indicate the total no. of test cases and first line before matrix represents size of matrix. Then input would be like this. 3 5 10 23 43 34 21 11 13 43 30 71 10 23 43 ...