Cod sursa(job #1342218)

Utilizator raduneagoeNeagoe Radu raduneagoe Data 13 februarie 2015 17:36:03
Problema Convertor Scor 70
Compilator java Status done
Runda rosedu_cdl_2015 Marime 2 kb
import java.io.*;
import java.util.Scanner;

public class Main
{
	public static int charAppears(String s, char ch)
	{
		int counter = 0;
		for(int i = 0; i < s.length(); i++)
		{
			if(s.charAt(i) == ch)
				counter++;
		}
		s = null;
		return counter;
	}
	
	public static String deleteChar(String s)
	{	
		while(s.charAt(0) == ' ' || s.charAt(0) == '"' || s.charAt(s.length() - 1) == ' ' || s.charAt(s.length() - 1) == '"' || s.charAt(s.length() - 1) == '}' || s.charAt(s.length() - 1) == ',')
		{
			if(s.charAt(0) == ' ' || s.charAt(0) == '"')
				s = s.substring(1);

			if(s.charAt(s.length() - 1) == ' ' || s.charAt(s.length() - 1) == '"' || s.charAt(s.length() - 1) == '}' || s.charAt(s.length() - 1) == ',')
				s = s.substring(0,s.length() - 1);
		}
		return s;
	}
	
	public static void main(String[] args) throws IOException
	{
		String JSON = new Scanner(new FileInputStream("convertor.in")).useDelimiter("\\Z").next().replaceAll("(\\r|\\n)", "");
		PrintWriter writer = new PrintWriter("convertor.out");
		
		// prima linie
		int a = JSON.indexOf('"') + 1, b = JSON.indexOf(':') - 1;
		int m = charAppears(JSON.substring(JSON.indexOf(':'), JSON.indexOf('}')), ',') + 1; //nr virgulelor = nr coloanelor
		int n = charAppears(JSON, '}'); //nr '}' = nr liniilor, fara prima linie
		
		for (int i = 0; i < m; i++)
		{
			writer.print(deleteChar(JSON.substring(a, b)) + ",");
			
			a = JSON.indexOf(',', a) + 1;
			b = JSON.indexOf(':', b + 2) - 1;
		}
		
		//urmatoarele linii
		a = b = 0;
		for(int i = 0; i < n; i++)
		{
			writer.println();
			
			for(int j = 0; j < m; j++)
			{
				a = JSON.indexOf(':', a) + 1;
				b = JSON.indexOf(',', b) + 1;
				try //pe ultima linie nu voi mai avea "}," si va da eroare
				{
					writer.print(deleteChar(JSON.substring(a, b)) + ",");
				} 
				catch (StringIndexOutOfBoundsException e)
				{
					b = JSON.lastIndexOf('}');
					writer.print(deleteChar(JSON.substring(a, b)) + ",");
				}
			}
		}
		writer.close();
	}
}