anton/SummerOfCode/src/summerofcode/Day2.java

   1 package summerofcode;
   2
   3 import java.io.FileReader;
   4 import java.util.Scanner;
   5
   6 /**
   7  *
   8  * @author Anton Dil
   9  */
  10 public class Day2
  11 {
  12    public static void main(String[] args) throws Exception
  13    {
  14       Scanner sc = new Scanner(new FileReader("02-lifts.txt"));
  15       int exit = Integer.MIN_VALUE; //replaceable floor value
  16       String input = "";
  17       int floor = 0;
  18
  19       while (sc.hasNext())
  20       {
  21          input = sc.next(); //just one line of input in fact
  22       }
  23
  24       System.out.println("Input was " + input);
  25
  26       for (char ch : input.toCharArray())
  27       {
  28          switch (ch)
  29          {
  30             case 'v':
  31                floor--;
  32                break;
  33             case '^':
  34                floor++;
  35                break;
  36             case '=':
  37                if (floor > exit)
  38                {
  39                   exit = floor;
  40                }
  41          }
  42       }
  43
  44       System.out.printf("final floor %d, highest exit %d%n", floor, exit);
  45    }
  46 }