From 2f674dc80f0382f1c3178f435714960734dc9d3c Mon Sep 17 00:00:00 2001
From: Nguyễn Gia Phong <mcsinyx@disroot.org>
Date: Sat, 6 Jun 2020 21:33:13 +0700
Subject: Reorganize stuff from secondary school

---
 2ndary/12/TP-HN-2010/_BAI3.pas | 73 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 2ndary/12/TP-HN-2010/_BAI3.pas

(limited to '2ndary/12/TP-HN-2010/_BAI3.pas')

diff --git a/2ndary/12/TP-HN-2010/_BAI3.pas b/2ndary/12/TP-HN-2010/_BAI3.pas
new file mode 100644
index 0000000..09ec0ca
--- /dev/null
+++ b/2ndary/12/TP-HN-2010/_BAI3.pas
@@ -0,0 +1,73 @@
+type
+  board = array[0..1023] of boolean;
+
+var
+  f : text;
+  a : board;
+  i, j, k, l, m, n : byte;
+
+function king(
+  e : board;
+  x, y : byte
+) : board;
+  var z, t : byte;
+  begin
+    for z := x - 1 to x + 1 do
+      for t := y - 1 to y + 1 do
+        e[z, t] := true;
+    exit(e)
+  end;
+
+function full(c : board) : boolean;
+  var d : boolean;
+  begin
+    for d in c do
+      if not(d) then
+        exit(false);
+    exit(true)
+  end;
+
+function libai3(
+  b : board;
+  x0, y0 : byte
+) : byte;
+  type tmp = record
+      n, x, y : byte
+    end;
+  var
+    max : tmp;
+    t, x, y : byte;
+  begin
+    if full(b) then exit(0);
+    max.n := 0;
+    for x := x0 to m do
+      for y := y0 to n do
+        if not(b[x, y]) then
+          begin
+            t := libai3(king(b, x, y), x + 1, y + 1) + 1;
+            writeln(t);
+            if t > max.n then
+              begin
+                max.x := x;
+                max.y := y;
+                max.n := t
+              end
+          end;
+    exit(max.n)
+  end;
+
+begin
+  assign(f, 'BAI3.INP');
+  reset(f);
+  readln(f, m, n, k);
+  for l := 1 to k do
+    begin
+      readln(f, i, j);
+      a := king(a, i, j)
+    end;
+  close(f);
+  assign(f, 'BAI3.OUT');
+  rewrite(f);
+  writeln(libai3(a, 1, 1));
+  close(f)
+end.
-- 
cgit 1.4.1