Data update

Task/Balanced-brackets/Delphi/balanced-brackets.pas

@@ -0,0 +1,31 @@
+procedure Balanced_Brackets;
+
+var   BracketsStr : string;
+      TmpStr      : string;
+      I,J         : integer;
+
+begin
+  Randomize;
+  for I := 1 to 9 do
+    begin
+      { Create a random string of 2*N chars with N*"[" and N*"]" }
+      TmpStr  := '';
+      for J := 1 to I do
+        TmpStr := '['+TmpStr+']';
+      BracketsStr := '';
+      while TmpStr > '' do
+        begin
+          J := Random(Length(TmpStr))+1;
+          BracketsStr := BracketsStr+TmpStr[J];
+          Delete(TmpStr,J,1);
+        end;
+      TmpStr := BracketsStr;
+      { Test for balanced brackets }
+      while Pos('[]',TmpStr) > 0 do
+        Delete(TmpStr,Pos('[]',TmpStr),2);
+      if TmpStr = '' then
+        writeln(BracketsStr+': OK')
+      else
+        writeln(BracketsStr+': not OK');
+    end;
+end;