From de52e10486021e4e569411d866d916a0a92c037f Mon Sep 17 00:00:00 2001
From: lhfelis <60291241+lhfelis@users.noreply.github.com>
Date: Sat, 23 Jan 2021 17:43:47 +0800
Subject: [PATCH] Fix N-Queens solution time complexity

---
 ctl/meta/Backtracking | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ctl/meta/Backtracking b/ctl/meta/Backtracking
index b3c611fc..9c140d2d 100644
--- a/ctl/meta/Backtracking
+++ b/ctl/meta/Backtracking
@@ -5,8 +5,8 @@
 |40. Combination Sum II | [Go]({{< relref "/ChapterFour/0040.Combination-Sum-II.md" >}})| Medium | O(n log n)| O(n)||
 |46. Permutations | [Go]({{< relref "/ChapterFour/0046.Permutations.md" >}})| Medium | O(n)| O(n)|❤️|
 |47. Permutations II | [Go]({{< relref "/ChapterFour/0047.Permutations-II.md" >}})| Medium | O(n^2)| O(n)|❤️|
-|51. N-Queens | [Go]({{< relref "/ChapterFour/0051.N-Queens.md" >}})| Hard | O(n^2)| O(n)|❤️|
-|52. N-Queens II  | [Go]({{< relref "/ChapterFour/0052.N-Queens-II.md" >}})| Hard | O(n^2)| O(n)|❤️|
+|51. N-Queens | [Go]({{< relref "/ChapterFour/0051.N-Queens.md" >}})| Hard | O(n!)| O(n)|❤️|
+|52. N-Queens II  | [Go]({{< relref "/ChapterFour/0052.N-Queens-II.md" >}})| Hard | O(n!)| O(n)|❤️|
 |60. Permutation Sequence  | [Go]({{< relref "/ChapterFour/0060.Permutation-Sequence.md" >}})| Medium | O(n log n)| O(1)||
 |77. Combinations  | [Go]({{< relref "/ChapterFour/0077.Combinations.md" >}})| Medium | O(n)| O(n)|❤️|
 |78. Subsets   | [Go]({{< relref "/ChapterFour/0078.Subsets.md" >}})| Medium | O(n^2)| O(n)|❤️|