Showing posts with label codejam. Show all posts
Showing posts with label codejam. Show all posts

Friday, May 8, 2015

Solution to Reverse Words

This is one solution to "Reverse Words" problem in google codejam hosted at https://code.google.com/codejam/contest/351101/dashboard#s=p1

import java.io.BufferedReader;
import java.io.FileReader;

/**
 * @author: Aniruddha Dutta Chowdhury (adchowdhury@gmail.com)
 * @since: May 8, 2015
 */

public class ReverseWords {

    public static void main(String[] args) {
        String filePath = "input.txt";
       
        try {
            BufferedReader br = new BufferedReader(new FileReader(filePath));
            String sCurrentLine;
            StringBuffer sb = new StringBuffer();
            int insertIndex = 0;
            char currentChar = '\b';
            while ((sCurrentLine = br.readLine()) != null) {
                //System.out.println(sCurrentLine);
                for(int iCharCounter = 0; iCharCounter < sCurrentLine.length(); iCharCounter++) {
                    currentChar = sCurrentLine.charAt(iCharCounter);
                    if(currentChar == ' ') {
                        insertIndex = 0;
                        sb.insert(insertIndex, currentChar);
                    }else {
                        sb.insert(insertIndex++, currentChar);
                    }
                }
                System.out.println(sb);
                sb = new StringBuffer();
                insertIndex = 0;
            }
        } catch (Throwable a_th) {
            a_th.printStackTrace();
        }
    }
}