From cd8c994abcc72225b1948a538be6b3bbb3547fa6 Mon Sep 17 00:00:00 2001
From: Yihua Wang <yihuawang@microsoft.com>
Date: Fri, 7 Oct 2022 15:21:02 +0800
Subject: [PATCH 1/2] add C# solution to lc problem: No.621

---
 .../0600-0699/0621.Task Scheduler/README.md   | 20 ++++++++++++++++---
 .../0621.Task Scheduler/README_EN.md          | 20 ++++++++++++++++---
 .../0600-0699/0621.Task Scheduler/Solution.cs | 15 ++++++++++++++
 3 files changed, 49 insertions(+), 6 deletions(-)
 create mode 100644 solution/0600-0699/0621.Task Scheduler/Solution.cs

diff --git a/solution/0600-0699/0621.Task Scheduler/README.md b/solution/0600-0699/0621.Task Scheduler/README.md
index c0f89402f1826..6421d0d8ab9a6 100644
--- a/solution/0600-0699/0621.Task Scheduler/README.md	
+++ b/solution/0600-0699/0621.Task Scheduler/README.md	
@@ -158,10 +158,24 @@ func max(a, b int) int {
 }
 ```
 
-### **...**
-
-```
+### **C#**
 
+```C#
+public class Solution {
+    public int LeastInterval(char[] tasks, int n) {
+        int[] cnt = new int[26];
+        int x = 0;
+        foreach (char c in tasks) {
+            cnt[c - 'A']++;
+            x = Math.Max(x, cnt[c - 'A']);
+        }
+        int s = 0;
+        foreach (int v in cnt) {
+            s = v == x ? s + 1 : s;
+        }
+        return Math.Max(tasks.Length, (x - 1) * (n + 1) + s);
+    }
+}
 ```
 
 <!-- tabs:end -->
diff --git a/solution/0600-0699/0621.Task Scheduler/README_EN.md b/solution/0600-0699/0621.Task Scheduler/README_EN.md
index 8c52ed4a66c6f..76980e8d08e77 100644
--- a/solution/0600-0699/0621.Task Scheduler/README_EN.md	
+++ b/solution/0600-0699/0621.Task Scheduler/README_EN.md	
@@ -141,10 +141,24 @@ func max(a, b int) int {
 }
 ```
 
-### **...**
-
-```
+### **C#**
 
+```C#
+public class Solution {
+    public int LeastInterval(char[] tasks, int n) {
+        int[] cnt = new int[26];
+        int x = 0;
+        foreach (char c in tasks) {
+            cnt[c - 'A']++;
+            x = Math.Max(x, cnt[c - 'A']);
+        }
+        int s = 0;
+        foreach (int v in cnt) {
+            s = v == x ? s + 1 : s;
+        }
+        return Math.Max(tasks.Length, (x - 1) * (n + 1) + s);
+    }
+}
 ```
 
 <!-- tabs:end -->
diff --git a/solution/0600-0699/0621.Task Scheduler/Solution.cs b/solution/0600-0699/0621.Task Scheduler/Solution.cs
new file mode 100644
index 0000000000000..efeae187abc15
--- /dev/null
+++ b/solution/0600-0699/0621.Task Scheduler/Solution.cs	
@@ -0,0 +1,15 @@
+public class Solution {
+    public int LeastInterval(char[] tasks, int n) {
+        int[] cnt = new int[26];
+        int x = 0;
+        foreach (char c in tasks) {
+            cnt[c - 'A']++;
+            x = Math.Max(x, cnt[c - 'A']);
+        }
+        int s = 0;
+        foreach (int v in cnt) {
+            s = v == x ? s + 1 : s;
+        }
+        return Math.Max(tasks.Length, (x - 1) * (n + 1) + s);
+    }
+}
\ No newline at end of file

From 6b783ca0d50127565303b60588a1d657ca770bcc Mon Sep 17 00:00:00 2001
From: Yihua Wang <yihuawang@microsoft.com>
Date: Fri, 7 Oct 2022 15:54:59 +0800
Subject: [PATCH 2/2] Update

---
 solution/0600-0699/0621.Task Scheduler/README.md    | 8 +++++++-
 solution/0600-0699/0621.Task Scheduler/README_EN.md | 8 +++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/solution/0600-0699/0621.Task Scheduler/README.md b/solution/0600-0699/0621.Task Scheduler/README.md
index 6421d0d8ab9a6..a38007b786a2d 100644
--- a/solution/0600-0699/0621.Task Scheduler/README.md	
+++ b/solution/0600-0699/0621.Task Scheduler/README.md	
@@ -160,7 +160,7 @@ func max(a, b int) int {
 
 ### **C#**
 
-```C#
+```cs
 public class Solution {
     public int LeastInterval(char[] tasks, int n) {
         int[] cnt = new int[26];
@@ -178,4 +178,10 @@ public class Solution {
 }
 ```
 
+### **...**
+
+```
+
+```
+
 <!-- tabs:end -->
diff --git a/solution/0600-0699/0621.Task Scheduler/README_EN.md b/solution/0600-0699/0621.Task Scheduler/README_EN.md
index 76980e8d08e77..992fba8a91950 100644
--- a/solution/0600-0699/0621.Task Scheduler/README_EN.md	
+++ b/solution/0600-0699/0621.Task Scheduler/README_EN.md	
@@ -143,7 +143,7 @@ func max(a, b int) int {
 
 ### **C#**
 
-```C#
+```cs
 public class Solution {
     public int LeastInterval(char[] tasks, int n) {
         int[] cnt = new int[26];
@@ -161,4 +161,10 @@ public class Solution {
 }
 ```
 
+### **...**
+
+```
+
+```
+
 <!-- tabs:end -->