diff --git a/README.md b/README.md
index 17ab79b15..340dbd3cd 100755
--- a/README.md
+++ b/README.md
@@ -127,15 +127,15 @@
| | Easy | Medium | Hard | Total |
|:--------:|:--------:|:--------:|:--------:|:--------:|
|Optimizing|33|45|30|108|
-|Accepted|**280**|**426**|**126**|**832**|
+|Accepted|**281**|**426**|**126**|**833**|
|Total|527|1107|442|2076|
-|Perfection Rate|88.2%|89.4%|76.2%|87.0%|
-|Completion Rate|53.1%|38.5%|28.5%|40.1%|
+|Perfection Rate|88.3%|89.4%|76.2%|87.0%|
+|Completion Rate|53.3%|38.5%|28.5%|40.1%|
|------------|----------------------------|----------------------------|----------------------------|----------------------------|
## 二. 目录
-以下已经收录了 727 道题的题解，还有 11 道题在尝试优化到 beats 100%
+以下已经收录了 728 道题的题解，还有 11 道题在尝试优化到 beats 100%
| No. | Title | Solution | Acceptance | Difficulty | Frequency |
|:--------:|:--------------------------------------------------------------|:--------:|:--------:|:--------:|:--------:|
@@ -479,7 +479,7 @@
|0338|Counting Bits|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0338.Counting-Bits)|72.0%|Easy||
|0339|Nested List Weight Sum||78.7%|Medium||
|0340|Longest Substring with At Most K Distinct Characters||46.7%|Medium||
-|0341|Flatten Nested List Iterator|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0341.Flatten-Nested-List-Iterator)|57.5%|Medium||
+|0341|Flatten Nested List Iterator|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0341.Flatten-Nested-List-Iterator)|57.6%|Medium||
|0342|Power of Four|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0342.Power-of-Four)|42.9%|Easy||
|0343|Integer Break|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0343.Integer-Break)|52.7%|Medium||
|0344|Reverse String|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0344.Reverse-String)|72.6%|Easy||
@@ -658,7 +658,7 @@
|0517|Super Washing Machines||39.0%|Hard||
|0518|Coin Change 2|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0518.Coin-Change-2)|55.2%|Medium||
|0519|Random Flip Matrix||38.6%|Medium||
-|0520|Detect Capital||54.2%|Easy||
+|0520|Detect Capital|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0520.Detect-Capital)|54.2%|Easy||
|0521|Longest Uncommon Subsequence I||59.8%|Easy||
|0522|Longest Uncommon Subsequence II||39.9%|Medium||
|0523|Continuous Subarray Sum|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0523.Continuous-Subarray-Sum)|26.2%|Medium||
@@ -992,7 +992,7 @@
|0851|Loud and Rich|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0851.Loud-and-Rich)|55.0%|Medium||
|0852|Peak Index in a Mountain Array|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0852.Peak-Index-in-a-Mountain-Array)|71.4%|Easy||
|0853|Car Fleet|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0853.Car-Fleet)|47.0%|Medium||
-|0854|K-Similar Strings||38.8%|Hard||
+|0854|K-Similar Strings||38.9%|Hard||
|0855|Exam Room||43.5%|Medium||
|0856|Score of Parentheses|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0856.Score-of-Parentheses)|65.5%|Medium||
|0857|Minimum Cost to Hire K Workers||51.3%|Hard||
@@ -1107,7 +1107,7 @@
|0966|Vowel Spellchecker|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0966.Vowel-Spellchecker)|51.7%|Medium||
|0967|Numbers With Same Consecutive Differences||46.5%|Medium||
|0968|Binary Tree Cameras|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0968.Binary-Tree-Cameras)|41.2%|Hard||
-|0969|Pancake Sorting|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0969.Pancake-Sorting)|69.3%|Medium||
+|0969|Pancake Sorting|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0969.Pancake-Sorting)|69.4%|Medium||
|0970|Powerful Integers|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0970.Powerful-Integers)|43.4%|Medium||
|0971|Flip Binary Tree To Match Preorder Traversal|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/0971.Flip-Binary-Tree-To-Match-Preorder-Traversal)|49.8%|Medium||
|0972|Equal Rational Numbers||42.3%|Hard||
@@ -1283,7 +1283,7 @@
|1142|User Activity for the Past 30 Days II||35.8%|Easy||
|1143|Longest Common Subsequence|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/1143.Longest-Common-Subsequence)|58.8%|Medium||
|1144|Decrease Elements To Make Array Zigzag||46.7%|Medium||
-|1145|Binary Tree Coloring Game|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/1145.Binary-Tree-Coloring-Game)|51.1%|Medium||
+|1145|Binary Tree Coloring Game|[Go](https://github.com/halfrost/LeetCode-Go/tree/master/leetcode/1145.Binary-Tree-Coloring-Game)|51.0%|Medium||
|1146|Snapshot Array||37.1%|Medium||
|1147|Longest Chunked Palindrome Decomposition||60.2%|Hard||
|1148|Article Views I||77.1%|Easy||
@@ -2127,7 +2127,7 @@
|1986|Minimum Number of Work Sessions to Finish the Tasks||30.8%|Medium||
|1987|Number of Unique Good Subsequences||50.7%|Hard||
|1988|Find Cutoff Score for Each School||71.5%|Medium||
-|1989|Maximum Number of People That Can Be Caught in Tag||57.6%|Medium||
+|1989|Maximum Number of People That Can Be Caught in Tag||57.7%|Medium||
|1990|Count the Number of Experiments||52.4%|Medium||
|1991|Find the Middle Index in Array||64.7%|Easy||
|1992|Find All Groups of Farmland||65.4%|Medium||
@@ -2211,10 +2211,10 @@
|2070|Most Beautiful Item for Each Query||42.7%|Medium||
|2071|Maximum Number of Tasks You Can Assign||29.4%|Hard||
|2072|The Winner University||92.2%|Easy||
-|2073|Time Needed to Buy Tickets||56.2%|Easy||
+|2073|Time Needed to Buy Tickets||56.3%|Easy||
|2074|Reverse Nodes in Even Length Groups||38.9%|Medium||
|2075|Decode the Slanted Ciphertext||46.9%|Medium||
-|2076|Process Restricted Friend Requests||39.0%|Hard||
+|2076|Process Restricted Friend Requests||39.1%|Hard||
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|
------------------------------------------------------------------
diff --git a/leetcode/0520.Detect-Capital/README.md b/leetcode/0520.Detect-Capital/README.md
index 376ef59a5..c4532bfd8 100644
--- a/leetcode/0520.Detect-Capital/README.md
+++ b/leetcode/0520.Detect-Capital/README.md
@@ -1,4 +1,4 @@
-# [520. Detect Capital](https://leetcode-cn.com/problems/detect-capital/)
+# [520. Detect Capital](https://leetcode.com/problems/detect-capital/)
## 题目
@@ -44,11 +44,13 @@ Output: false
## 解题思路
-- 把word分别转换为全部小写wLower，全部大写wUpper，首字母大写的字符串wCaptial
-- 判断word是否等于wLower,wUpper,wCaptial中的一个，如果是返回true，否则返回false
+- 把 word 分别转换为全部小写 wLower，全部大写 wUpper，首字母大写的字符串 wCaptial
+- 判断 word 是否等于 wLower, wUpper, wCaptial 中的一个，如果是返回 true，否则返回 false
## 代码
+
```go
+
package leetcode
import "strings"
@@ -62,4 +64,5 @@ func detectCapitalUse(word string) bool {
}
return false
}
+
```
\ No newline at end of file
diff --git a/website/content/ChapterFour/0500~0599/0518.Coin-Change-2.md b/website/content/ChapterFour/0500~0599/0518.Coin-Change-2.md
index f3428cd1e..03bf2d1c8 100644
--- a/website/content/ChapterFour/0500~0599/0518.Coin-Change-2.md
+++ b/website/content/ChapterFour/0500~0599/0518.Coin-Change-2.md
@@ -76,5 +76,5 @@ func change(amount int, coins []int) int {
----------------------------------------------
diff --git a/website/content/ChapterFour/0500~0599/0520.Detect-Capital.md b/website/content/ChapterFour/0500~0599/0520.Detect-Capital.md
new file mode 100644
index 000000000..40f8156d0
--- /dev/null
+++ b/website/content/ChapterFour/0500~0599/0520.Detect-Capital.md
@@ -0,0 +1,75 @@
+# [520. Detect Capital](https://leetcode.com/problems/detect-capital/)
+
+
+## 题目
+
+We define the usage of capitals in a word to be right when one of the following cases holds:
+
+All letters in this word are capitals, like "USA".
+
+All letters in this word are not capitals, like "leetcode".
+
+Only the first letter in this word is capital, like "Google".
+
+Given a string word, return true if the usage of capitals in it is right.
+
+**Example 1:**
+
+```
+Input: word = "USA"
+Output: true
+```
+
+**Example 2:**
+
+```
+Input: word = "FlaG"
+Output: false
+```
+
+**Constraints:**
+
+- 1 <= word.length <= 100
+- word consists of lowercase and uppercase English letters.
+
+## 题目大意
+
+我们定义，在以下情况时，单词的大写用法是正确的：
+
+全部字母都是大写，比如 "USA" 。
+单词中所有字母都不是大写，比如 "leetcode" 。
+如果单词不只含有一个字母，只有首字母大写，比如"Google" 。
+
+给你一个字符串 word 。如果大写用法正确，返回 true ；否则，返回 false 。
+
+## 解题思路
+
+- 把 word 分别转换为全部小写 wLower，全部大写 wUpper，首字母大写的字符串 wCaptial
+- 判断 word 是否等于 wLower, wUpper, wCaptial 中的一个，如果是返回 true，否则返回 false
+
+## 代码
+
+```go
+
+package leetcode
+
+import "strings"
+
+func detectCapitalUse(word string) bool {
+ wLower := strings.ToLower(word)
+ wUpper := strings.ToUpper(word)
+ wCaptial := strings.ToUpper(string(word[0])) + strings.ToLower(string(word[1:]))
+ if wCaptial == word || wLower == word || wUpper == word {
+ return true
+ }
+ return false
+}
+
+```
+
+
+----------------------------------------------
+
diff --git a/website/content/ChapterFour/0500~0599/0523.Continuous-Subarray-Sum.md b/website/content/ChapterFour/0500~0599/0523.Continuous-Subarray-Sum.md
index 188d9f8d2..671295e2a 100644
--- a/website/content/ChapterFour/0500~0599/0523.Continuous-Subarray-Sum.md
+++ b/website/content/ChapterFour/0500~0599/0523.Continuous-Subarray-Sum.md
@@ -77,6 +77,6 @@ func checkSubarraySum(nums []int, k int) bool {
----------------------------------------------
diff --git a/website/content/ChapterTwo/Backtracking.md b/website/content/ChapterTwo/Backtracking.md
index b5926c35a..ab9015815 100644
--- a/website/content/ChapterTwo/Backtracking.md
+++ b/website/content/ChapterTwo/Backtracking.md
@@ -134,10 +134,10 @@ func updateMatrix_BFS(matrix [][]int) [][]int {
|0816|Ambiguous Coordinates|[Go]({{< relref "/ChapterFour/0800~0899/0816.Ambiguous-Coordinates.md" >}})|Medium||||55.7%|
|0842|Split Array into Fibonacci Sequence|[Go]({{< relref "/ChapterFour/0800~0899/0842.Split-Array-into-Fibonacci-Sequence.md" >}})|Medium| O(n^2)| O(1)|❤️|37.4%|
|0980|Unique Paths III|[Go]({{< relref "/ChapterFour/0900~0999/0980.Unique-Paths-III.md" >}})|Hard| O(n log n)| O(n)||79.2%|
-|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard| O(n log n)| O(n) ||49.1%|
+|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard| O(n log n)| O(n) ||49.0%|
|1079|Letter Tile Possibilities|[Go]({{< relref "/ChapterFour/1000~1099/1079.Letter-Tile-Possibilities.md" >}})|Medium| O(n^2)| O(1)|❤️|76.1%|
|1239|Maximum Length of a Concatenated String with Unique Characters|[Go]({{< relref "/ChapterFour/1200~1299/1239.Maximum-Length-of-a-Concatenated-String-with-Unique-Characters.md" >}})|Medium||||50.6%|
-|1655|Distribute Repeating Integers|[Go]({{< relref "/ChapterFour/1600~1699/1655.Distribute-Repeating-Integers.md" >}})|Hard||||40.6%|
+|1655|Distribute Repeating Integers|[Go]({{< relref "/ChapterFour/1600~1699/1655.Distribute-Repeating-Integers.md" >}})|Hard||||40.7%|
|------------|-------------------------------------------------------|-------| ----------------| ---------------|-------------|-------------|-------------|
diff --git a/website/content/ChapterTwo/Bit_Manipulation.md b/website/content/ChapterTwo/Bit_Manipulation.md
index 68217fb2e..f736f5daf 100644
--- a/website/content/ChapterTwo/Bit_Manipulation.md
+++ b/website/content/ChapterTwo/Bit_Manipulation.md
@@ -86,14 +86,14 @@ X & ~X = 0
|0898|Bitwise ORs of Subarrays|[Go]({{< relref "/ChapterFour/0800~0899/0898.Bitwise-ORs-of-Subarrays.md" >}})|Medium| O(n)| O(1)||36.2%|
|0980|Unique Paths III|[Go]({{< relref "/ChapterFour/0900~0999/0980.Unique-Paths-III.md" >}})|Hard||||79.2%|
|0995|Minimum Number of K Consecutive Bit Flips|[Go]({{< relref "/ChapterFour/0900~0999/0995.Minimum-Number-of-K-Consecutive-Bit-Flips.md" >}})|Hard||||50.3%|
-|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard||||49.1%|
+|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard||||49.0%|
|1178|Number of Valid Words for Each Puzzle|[Go]({{< relref "/ChapterFour/1100~1199/1178.Number-of-Valid-Words-for-Each-Puzzle.md" >}})|Hard||||46.8%|
|1239|Maximum Length of a Concatenated String with Unique Characters|[Go]({{< relref "/ChapterFour/1200~1299/1239.Maximum-Length-of-a-Concatenated-String-with-Unique-Characters.md" >}})|Medium||||50.6%|
|1310|XOR Queries of a Subarray|[Go]({{< relref "/ChapterFour/1300~1399/1310.XOR-Queries-of-a-Subarray.md" >}})|Medium||||70.7%|
|1442|Count Triplets That Can Form Two Arrays of Equal XOR|[Go]({{< relref "/ChapterFour/1400~1499/1442.Count-Triplets-That-Can-Form-Two-Arrays-of-Equal-XOR.md" >}})|Medium||||73.8%|
|1461|Check If a String Contains All Binary Codes of Size K|[Go]({{< relref "/ChapterFour/1400~1499/1461.Check-If-a-String-Contains-All-Binary-Codes-of-Size-K.md" >}})|Medium||||54.5%|
|1486|XOR Operation in an Array|[Go]({{< relref "/ChapterFour/1400~1499/1486.XOR-Operation-in-an-Array.md" >}})|Easy||||84.0%|
-|1655|Distribute Repeating Integers|[Go]({{< relref "/ChapterFour/1600~1699/1655.Distribute-Repeating-Integers.md" >}})|Hard||||40.6%|
+|1655|Distribute Repeating Integers|[Go]({{< relref "/ChapterFour/1600~1699/1655.Distribute-Repeating-Integers.md" >}})|Hard||||40.7%|
|1659|Maximize Grid Happiness|[Go]({{< relref "/ChapterFour/1600~1699/1659.Maximize-Grid-Happiness.md" >}})|Hard||||36.8%|
|1680|Concatenation of Consecutive Binary Numbers|[Go]({{< relref "/ChapterFour/1600~1699/1680.Concatenation-of-Consecutive-Binary-Numbers.md" >}})|Medium||||52.5%|
|1681|Minimum Incompatibility|[Go]({{< relref "/ChapterFour/1600~1699/1681.Minimum-Incompatibility.md" >}})|Hard||||36.6%|
diff --git a/website/content/ChapterTwo/Depth_First_Search.md b/website/content/ChapterTwo/Depth_First_Search.md
index 5b4412611..f72f21ce0 100644
--- a/website/content/ChapterTwo/Depth_First_Search.md
+++ b/website/content/ChapterTwo/Depth_First_Search.md
@@ -40,7 +40,7 @@ weight: 9
|0297|Serialize and Deserialize Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0297.Serialize-and-Deserialize-Binary-Tree.md" >}})|Hard||||52.2%|
|0329|Longest Increasing Path in a Matrix|[Go]({{< relref "/ChapterFour/0300~0399/0329.Longest-Increasing-Path-in-a-Matrix.md" >}})|Hard||||48.4%|
|0337|House Robber III|[Go]({{< relref "/ChapterFour/0300~0399/0337.House-Robber-III.md" >}})|Medium||||52.5%|
-|0341|Flatten Nested List Iterator|[Go]({{< relref "/ChapterFour/0300~0399/0341.Flatten-Nested-List-Iterator.md" >}})|Medium||||57.6%|
+|0341|Flatten Nested List Iterator|[Go]({{< relref "/ChapterFour/0300~0399/0341.Flatten-Nested-List-Iterator.md" >}})|Medium||||57.5%|
|0385|Mini Parser|[Go]({{< relref "/ChapterFour/0300~0399/0385.Mini-Parser.md" >}})|Medium||||35.3%|
|0386|Lexicographical Numbers|[Go]({{< relref "/ChapterFour/0300~0399/0386.Lexicographical-Numbers.md" >}})|Medium||||57.0%|
|0399|Evaluate Division|[Go]({{< relref "/ChapterFour/0300~0399/0399.Evaluate-Division.md" >}})|Medium||||56.0%|
diff --git a/website/content/ChapterTwo/Dynamic_Programming.md b/website/content/ChapterTwo/Dynamic_Programming.md
index 5acdb6e1d..8e611c401 100644
--- a/website/content/ChapterTwo/Dynamic_Programming.md
+++ b/website/content/ChapterTwo/Dynamic_Programming.md
@@ -84,7 +84,7 @@ weight: 7
|0920|Number of Music Playlists|[Go]({{< relref "/ChapterFour/0900~0999/0920.Number-of-Music-Playlists.md" >}})|Hard||||48.8%|
|0968|Binary Tree Cameras|[Go]({{< relref "/ChapterFour/0900~0999/0968.Binary-Tree-Cameras.md" >}})|Hard||||41.2%|
|0978|Longest Turbulent Subarray|[Go]({{< relref "/ChapterFour/0900~0999/0978.Longest-Turbulent-Subarray.md" >}})|Medium||||47.5%|
-|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard||||49.1%|
+|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard||||49.0%|
|1025|Divisor Game|[Go]({{< relref "/ChapterFour/1000~1099/1025.Divisor-Game.md" >}})|Easy| O(1)| O(1)||66.4%|
|1048|Longest String Chain|[Go]({{< relref "/ChapterFour/1000~1099/1048.Longest-String-Chain.md" >}})|Medium||||57.1%|
|1049|Last Stone Weight II|[Go]({{< relref "/ChapterFour/1000~1099/1049.Last-Stone-Weight-II.md" >}})|Medium||||49.5%|
@@ -97,7 +97,7 @@ weight: 7
|1646|Get Maximum in Generated Array|[Go]({{< relref "/ChapterFour/1600~1699/1646.Get-Maximum-in-Generated-Array.md" >}})|Easy||||51.3%|
|1653|Minimum Deletions to Make String Balanced|[Go]({{< relref "/ChapterFour/1600~1699/1653.Minimum-Deletions-to-Make-String-Balanced.md" >}})|Medium||||54.0%|
|1654|Minimum Jumps to Reach Home|[Go]({{< relref "/ChapterFour/1600~1699/1654.Minimum-Jumps-to-Reach-Home.md" >}})|Medium||||25.7%|
-|1655|Distribute Repeating Integers|[Go]({{< relref "/ChapterFour/1600~1699/1655.Distribute-Repeating-Integers.md" >}})|Hard||||40.6%|
+|1655|Distribute Repeating Integers|[Go]({{< relref "/ChapterFour/1600~1699/1655.Distribute-Repeating-Integers.md" >}})|Hard||||40.7%|
|1659|Maximize Grid Happiness|[Go]({{< relref "/ChapterFour/1600~1699/1659.Maximize-Grid-Happiness.md" >}})|Hard||||36.8%|
|1664|Ways to Make a Fair Array|[Go]({{< relref "/ChapterFour/1600~1699/1664.Ways-to-Make-a-Fair-Array.md" >}})|Medium||||62.4%|
|1681|Minimum Incompatibility|[Go]({{< relref "/ChapterFour/1600~1699/1681.Minimum-Incompatibility.md" >}})|Hard||||36.6%|
diff --git a/website/content/ChapterTwo/Math.md b/website/content/ChapterTwo/Math.md
index c29126f8b..1f4d601e6 100644
--- a/website/content/ChapterTwo/Math.md
+++ b/website/content/ChapterTwo/Math.md
@@ -98,7 +98,7 @@ weight: 12
|0976|Largest Perimeter Triangle|[Go]({{< relref "/ChapterFour/0900~0999/0976.Largest-Perimeter-Triangle.md" >}})|Easy| O(n log n)| O(log n) ||59.9%|
|0989|Add to Array-Form of Integer|[Go]({{< relref "/ChapterFour/0900~0999/0989.Add-to-Array-Form-of-Integer.md" >}})|Easy||||45.1%|
|0991|Broken Calculator|[Go]({{< relref "/ChapterFour/0900~0999/0991.Broken-Calculator.md" >}})|Medium||||50.0%|
-|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard| O(n log n)| O(n) ||49.1%|
+|0996|Number of Squareful Arrays|[Go]({{< relref "/ChapterFour/0900~0999/0996.Number-of-Squareful-Arrays.md" >}})|Hard| O(n log n)| O(n) ||49.0%|
|1006|Clumsy Factorial|[Go]({{< relref "/ChapterFour/1000~1099/1006.Clumsy-Factorial.md" >}})|Medium||||54.3%|
|1017|Convert to Base -2|[Go]({{< relref "/ChapterFour/1000~1099/1017.Convert-to-Base-2.md" >}})|Medium||||59.6%|
|1025|Divisor Game|[Go]({{< relref "/ChapterFour/1000~1099/1025.Divisor-Game.md" >}})|Easy| O(1)| O(1)||66.4%|
diff --git a/website/content/ChapterTwo/String.md b/website/content/ChapterTwo/String.md
index 3d12f82f4..72a36b99e 100644
--- a/website/content/ChapterTwo/String.md
+++ b/website/content/ChapterTwo/String.md
@@ -76,6 +76,7 @@ weight: 2
|0474|Ones and Zeroes|[Go]({{< relref "/ChapterFour/0400~0499/0474.Ones-and-Zeroes.md" >}})|Medium||||44.0%|
|0488|Zuma Game|[Go]({{< relref "/ChapterFour/0400~0499/0488.Zuma-Game.md" >}})|Hard||||37.6%|
|0500|Keyboard Row|[Go]({{< relref "/ChapterFour/0500~0599/0500.Keyboard-Row.md" >}})|Easy||||67.1%|
+|0520|Detect Capital|[Go]({{< relref "/ChapterFour/0500~0599/0520.Detect-Capital.md" >}})|Easy||||54.2%|
|0524|Longest Word in Dictionary through Deleting|[Go]({{< relref "/ChapterFour/0500~0599/0524.Longest-Word-in-Dictionary-through-Deleting.md" >}})|Medium||||50.7%|
|0535|Encode and Decode TinyURL|[Go]({{< relref "/ChapterFour/0500~0599/0535.Encode-and-Decode-TinyURL.md" >}})|Medium||||83.1%|
|0537|Complex Number Multiplication|[Go]({{< relref "/ChapterFour/0500~0599/0537.Complex-Number-Multiplication.md" >}})|Medium||||70.9%|
diff --git a/website/content/ChapterTwo/Tree.md b/website/content/ChapterTwo/Tree.md
index ec8f29928..982c3a9ba 100644
--- a/website/content/ChapterTwo/Tree.md
+++ b/website/content/ChapterTwo/Tree.md
@@ -45,7 +45,7 @@ weight: 6
|0297|Serialize and Deserialize Binary Tree|[Go]({{< relref "/ChapterFour/0200~0299/0297.Serialize-and-Deserialize-Binary-Tree.md" >}})|Hard||||52.2%|
|0331|Verify Preorder Serialization of a Binary Tree|[Go]({{< relref "/ChapterFour/0300~0399/0331.Verify-Preorder-Serialization-of-a-Binary-Tree.md" >}})|Medium||||43.4%|
|0337|House Robber III|[Go]({{< relref "/ChapterFour/0300~0399/0337.House-Robber-III.md" >}})|Medium||||52.5%|
-|0341|Flatten Nested List Iterator|[Go]({{< relref "/ChapterFour/0300~0399/0341.Flatten-Nested-List-Iterator.md" >}})|Medium||||57.6%|
+|0341|Flatten Nested List Iterator|[Go]({{< relref "/ChapterFour/0300~0399/0341.Flatten-Nested-List-Iterator.md" >}})|Medium||||57.5%|
|0404|Sum of Left Leaves|[Go]({{< relref "/ChapterFour/0400~0499/0404.Sum-of-Left-Leaves.md" >}})|Easy| O(n)| O(1)||54.2%|
|0429|N-ary Tree Level Order Traversal|[Go]({{< relref "/ChapterFour/0400~0499/0429.N-ary-Tree-Level-Order-Traversal.md" >}})|Medium||||68.2%|
|0437|Path Sum III|[Go]({{< relref "/ChapterFour/0400~0499/0437.Path-Sum-III.md" >}})|Medium| O(n)| O(1)||49.7%|