1 files changed, 24 insertions, 0 deletions
diff --git a/others/other/lang.py b/others/other/lang.py
new file mode 100755
index 0000000..9c9f144
--- /dev/null
+++ b/others/other/lang.py
@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+def lang(index):
+    global unused
+    if index < len(unused) and unused[index]:
+        unused[index] = False
+        for i in commands[index]: lang(i)
+
+
+commands = []
+with open('LANG.INP') as f:
+    for index, line in enumerate(f):
+        l = line.split()
+        if l[0] == 'NEXT':
+            commands.append((index + 1,))
+        elif len(l) == 2:
+            commands.append((int(l[1]) - 1,))
+        else:
+            commands.append((int(l[1]) - 1, int(l[3]) - 1))
+
+unused = [True] * len(commands)
+lang(0)
+with open('LANG.OUT', 'w') as f:
+    print(sum(unused), file=f)
+    print(*(i + 1 for i, b in enumerate(unused) if b), sep='\n', file=f)