4 files changed, 1125 insertions, 0 deletions
diff --git a/day01/day01.java b/day01/day01.java
new file mode 100644
index 0000000..cfd8d20
--- /dev/null
+++ b/day01/day01.java
@@ -0,0 +1,114 @@
+import java.io.IOException;
+import java.io.RandomAccessFile;
+import java.util.ArrayList;
+import java.util.regex.Pattern;
+import java.util.regex.Matcher;
+
+public class day01 {
+  public static void main(String args[]) throws IOException {
+    RandomAccessFile input = new RandomAccessFile("input", "r");
+    System.out.println("Day 01 Part 1: " + part1(input));
+    input.seek(0);
+    System.out.println("Day 01 Part 2: " + part2(input));
+    input.close();
+  }
+
+  public static String part1(RandomAccessFile input) throws IOException {
+    boolean done = false;
+    int tot = 0;
+    int first = -1, last = -1;
+
+    while (!done) {
+      int ch = input.read();
+      if (ch == -1) {
+        done = true;
+      } else if (ch == 10) {
+        tot += (first * 10 + last);
+        first = -1;
+      } else if (ch >= 48 && ch <= 57) {
+        if (first == -1) {
+          first = ch - 48;
+        }
+        last = ch - 48;
+      }
+    }
+
+    return Integer.toString(tot);
+  }
+
+  public static String part2(RandomAccessFile input) throws IOException {
+    Pattern pat = Pattern.compile("(0|1|2|3|4|5|6|7|8|9|one|two|three|four|five|six|seven|eight|nine)");
+
+    int tot = 0;
+    String line = input.readLine();
+    while (line != null) {
+      Matcher mat = pat.matcher(line);
+      int first = -1, last = -1, end = 0;
+      while(!mat.hitEnd()) {
+        if (mat.find(end)) {
+          int ths = parseInt(mat.group());
+          if (first == -1) {
+            first = ths;
+          }
+          last = ths;
+          if (mat.end() - mat.start() == 1) {
+            end = mat.end();
+          } else {
+            end = mat.end() - 1;
+          }
+        }
+      }
+      tot += (first * 10 + last);
+
+      line = input.readLine();
+    }
+
+    return Integer.toString(tot);
+  }
+
+  private static int parseInt(String word) {
+    int num = -1;
+    switch (word) {
+      case "0":
+        num = 0;
+        break;
+      case "1":
+      case "one":
+        num = 1;
+        break;
+      case "2":
+      case "two":
+        num = 2;
+        break;
+      case "3":
+      case "three":
+        num = 3;
+        break;
+      case "4":
+      case "four":
+        num = 4;
+        break;
+      case "5":
+      case "five":
+        num = 5;
+        break;
+      case "6":
+      case "six":
+        num = 6;
+        break;
+      case "7":
+      case "seven":
+        num = 7;
+        break;
+      case "8":
+      case "eight":
+        num = 8;
+        break;
+      case "9":
+      case "nine":
+        num = 9;
+        break;
+    }
+    return num;
+  }
+}
diff --git a/day01/input b/day01/input
new file mode 100644
index 0000000..979a9c6
--- /dev/null
+++ b/day01/input
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diff --git a/day01/test1 b/day01/test1
new file mode 100644
index 0000000..7bbc69a
--- /dev/null
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diff --git a/day01/test2 b/day01/test2
new file mode 100644
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--- /dev/null
+++ b/day01/test2
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