Embedly Questions

Factorialcounter.java

import java.math.BigInteger;

public class Factorialcounter {
	/**
	 * Simply goes through each factorial and tests the cumulative number
	 */
	public static int numb(int s) {
		BigInteger a = new BigInteger(String.valueOf(s));
		while (--s > 0) {
			a = a.multiply(new BigInteger(String.valueOf(s)));
		}
		String qw = a.toString();
		int count = 0;
		for (int i = 0; i < qw.length(); i++) {
			count += Integer.parseInt(qw.charAt(i) + "");
		}
		return count;
	}

	public static void main(String[] args) {
		int i = 0;
		while (numb(i) != 8001) {
			i++;
		}
		System.out.println(i);

	}

}

Htmlcounter.java

import java.util.ArrayList;
import java.util.Scanner;

public class Htmlcounter {

	/**
	 * Simply counts the number of paragraphs by adding ints to a list that
	 * represent the depth at that time
	 */
	// gets Data
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String tempo = "";
		while (scan.hasNext()) {
			tempo = tempo + " " + scan.next();
			if (tempo.charAt(tempo.length() - 1) == ']') {
				break;
			}
		}
		// Counts the paragraphs and keeps track of the line
		int curlevel = -1;
		ArrayList<Integer> arr = new ArrayList<Integer>();
		for (int i = 0; i < tempo.length(); i++) {
			if (tempo.charAt(i) == 'p') {
				if (tempo.charAt(i - 1) == '<' && tempo.charAt(i + 1) == '>') {
					arr.add(curlevel);
				}
			}
			if (tempo.charAt(i) == '<')
				curlevel++;
			if (tempo.charAt(i) == '/') {
				if (tempo.charAt(i - 1) == '<') {
					curlevel -= 2;
				} else if (tempo.charAt(i + 1) == '>') {
					curlevel--;
				}
			}

		}
		// / Does the statistics
		double avg = 0;
		for (int i = 0; i < arr.size(); i++) {
			avg += arr.get(i);
		}
		double temp;
		double tot = 0;
		for (int i = 0; i < arr.size(); i++) {
			temp = arr.get(i) - avg;
			temp *= temp;
			tot += temp;
		}
		tot /= arr.size();
		System.out.println(Math.sqrt(tot));

	}
}