package fixjava;

public class StringUtils {

	/** Repeat the given string the requested number of times. */
	public static String repeat(String str, int numTimes) {
		StringBuilder buf = new StringBuilder(Math.max(0, str.length() * numTimes));
		for (int i = 0; i < numTimes; i++)
			buf.append(str);
		return buf.toString();
	}

	/**
	 * Pad the left hand side of a field with the given character. Always adds at least one pad character. If the length of str is
	 * greater than numPlaces-1, then the output string will be longer than numPlaces.
	 */
	public static String padLeft(String str, char padChar, int numPlaces) {
		int bufSize = Math.max(numPlaces, str.length() + 1);
		StringBuilder buf = new StringBuilder(Math.max(numPlaces, str.length() + 1));
		buf.append(padChar);
		for (int i = 1, mi = bufSize - str.length(); i < mi; i++)
			buf.append(padChar);
		buf.append(str);
		return buf.toString();
	}

	/**
	 * Pad the right hand side of a field with the given character. Always adds at least one pad character. If the length of str is
	 * greater than numPlaces-1, then the output string will be longer than numPlaces.
	 */
	public static String padRight(String str, char padChar, int numPlaces) {
		int bufSize = Math.max(numPlaces, str.length() + 1);
		StringBuilder buf = new StringBuilder(Math.max(numPlaces, str.length() + 1));
		buf.append(str);
		buf.append(padChar);
		while (buf.length() < bufSize)
			buf.append(padChar);
		return buf.toString();
	}

	/** Intern all strings in an array, skipping null elements. */
	public static String[] intern(String[] arr) {
		for (int i = 0; i < arr.length; i++)
			arr[i] = arr[i].intern();
		return arr;
	}

	/** Intern a string, ignoring null */
	public static String intern(String str) {
		return str == null ? null : str.intern();
	}

}

/**
 * Copyright 2012 Christopher Schmitz. All Rights Reserved.
 */

package com.isotopeent.codejam.lib.converters;

import com.isotopeent.codejam.lib.InputConverter;

public class MultiLineConverter implements InputConverter<Object[]> {

	private InputConverter<?>[] converters;
	private int count;

	private Object[] input;
	private int lineNumber;

	public MultiLineConverter(InputConverter<?> lineConverter, int count) {
		this.converters = new InputConverter<?>[count];
		this.count = count;
		for (int i = 0; i < count; i++) {
			converters[i] = lineConverter;
		}
	}

	public MultiLineConverter(InputConverter<?>[] lineConverters) {
		this.converters = lineConverters;
		this.count = lineConverters.length;
	}

	@Override
	public boolean readLine(String data) {
		if (lineNumber == 0) {
			input = new Object[count];
		}
		InputConverter<?> converter = converters[lineNumber];
		if (!converter.readLine(data)) {
			input[lineNumber++] = converter.generateObject();
		}

		if (lineNumber >= input.length){
			lineNumber = 0;
		}
		return lineNumber != 0;
	}

	@Override
	public Object[] generateObject() {
		return input;
	}

}
