solve 14

3 files changed, 87 insertions, 1 deletions

diff --git a/0008/main.hs b/0008/main.hs
index c852fa7..35a456f 100644
--- a/0008/main.hs
+++ b/0008/main.hs
@@ -9,5 +9,6 @@ findMax13 numbers =
 
 main = do
     contents <- readFile "input"
-    let max13 = findMax13 $ map digitToInt $ filter (\c -> c >= '0' && c <= '9') contents in
+    let max13 = findMax13 $ map digitToInt $ filter isDigit contents in
         putStrLn $ show max13
+    where isDigit x = x <= '9' && x >= '0'
diff --git a/0011/input b/0011/input
new file mode 100644
index 0000000..4ac2451
--- /dev/null
+++ b/0011/input
@@ -0,0 +1,20 @@
+08 02 22 97 38 15 00 40 00 75 04 05 07 78 52 12 50 77 91 08
+49 49 99 40 17 81 18 57 60 87 17 40 98 43 69 48 04 56 62 00
+81 49 31 73 55 79 14 29 93 71 40 67 53 88 30 03 49 13 36 65
+52 70 95 23 04 60 11 42 69 24 68 56 01 32 56 71 37 02 36 91
+22 31 16 71 51 67 63 89 41 92 36 54 22 40 40 28 66 33 13 80
+24 47 32 60 99 03 45 02 44 75 33 53 78 36 84 20 35 17 12 50
+32 98 81 28 64 23 67 10 26 38 40 67 59 54 70 66 18 38 64 70
+67 26 20 68 02 62 12 20 95 63 94 39 63 08 40 91 66 49 94 21
+24 55 58 05 66 73 99 26 97 17 78 78 96 83 14 88 34 89 63 72
+21 36 23 09 75 00 76 44 20 45 35 14 00 61 33 97 34 31 33 95
+78 17 53 28 22 75 31 67 15 94 03 80 04 62 16 14 09 53 56 92
+16 39 05 42 96 35 31 47 55 58 88 24 00 17 54 24 36 29 85 57
+86 56 00 48 35 71 89 07 05 44 44 37 44 60 21 58 51 54 17 58
+19 80 81 68 05 94 47 69 28 73 92 13 86 52 17 77 04 89 55 40
+04 52 08 83 97 35 99 16 07 97 57 32 16 26 26 79 33 27 98 66
+88 36 68 87 57 62 20 72 03 46 33 67 46 55 12 32 63 93 53 69
+04 42 16 73 38 25 39 11 24 94 72 18 08 46 29 32 40 62 76 36
+20 69 36 41 72 30 23 88 34 62 99 69 82 67 59 85 74 04 36 16
+20 73 35 29 78 31 90 01 74 31 49 71 48 86 81 16 23 57 05 54
+01 70 54 71 83 51 54 69 16 92 33 48 61 43 52 01 89 19 67 48
diff --git a/0014/main.pas b/0014/main.pas
new file mode 100644
index 0000000..a79200f
--- /dev/null
+++ b/0014/main.pas
@@ -0,0 +1,65 @@
+program main;
+
+const N = 1000000;
+
+var
+    res: array[1..N] of longint;
+
+function getlen(x: int64): longint;
+var
+    r: longint;
+    sp: longint;
+    argstk: array[1..1000] of int64;
+begin
+    sp := 0;
+    while (x > N) or (res[x] = -1) do
+    begin
+        sp := sp + 1;
+        argstk[sp] := x;
+        if x mod 2 = 1 then
+            x := x * 3 + 1
+        else
+            x := x div 2;
+    end;
+    r := res[x];
+    while sp > 0 do
+    begin
+        if argstk[sp] <= N then
+            res[argstk[sp]] := r + 1;
+        r := r + 1;
+        sp := sp  - 1;
+    end;
+    getlen := r;
+end;
+
+var
+    len: longint;
+    i: longint;
+    maxres: longint;
+    maxlen: longint;
+
+begin
+    len := 0;
+    maxres := 0;
+    maxlen := 1;
+    i := 1;
+    while i <= N do
+    begin
+        res[i] := -1;
+        i := i + 1;
+    end;
+    res[1] := 1;
+
+    i := 1;
+    while i <= N do
+    begin
+        len := getlen(i);
+        if len > maxlen then
+        begin
+            maxres := i;
+            maxlen := len;
+        end;
+        i := i + 1;
+    end;
+    writeln(maxres);
+end.