feat: add typescript solution to lc problem: No.0168.Excel Sheet Colu…

solution/0100-0199/0168.Excel Sheet Column Title/README.md

@@ -77,6 +77,21 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function convertToTitle(columnNumber: number): string {
+    let res: string[] = [];
+    while (columnNumber > 0) {
+        --columnNumber;
+        let num: number = columnNumber % 26;
+        res.unshift(String.fromCharCode(num + 65));
+        columnNumber = Math.floor(columnNumber / 26);
+    }
+    return res.join('');
+};
+```
+
 ### **C#**
 
 ```cs

solution/0100-0199/0168.Excel Sheet Column Title/README_EN.md

@@ -88,6 +88,21 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function convertToTitle(columnNumber: number): string {
+    let res: string[] = [];
+    while (columnNumber > 0) {
+        --columnNumber;
+        let num: number = columnNumber % 26;
+        res.unshift(String.fromCharCode(num + 65));
+        columnNumber = Math.floor(columnNumber / 26);
+    }
+    return res.join('');
+};
+```
+
 ### **C#**
 
 ```cs

solution/0100-0199/0168.Excel Sheet Column Title/Solution.ts

@@ -0,0 +1,10 @@
+function convertToTitle(columnNumber: number): string {
+    let res: string[] = [];
+    while (columnNumber > 0) {
+        --columnNumber;
+        let num: number = columnNumber % 26;
+        res.unshift(String.fromCharCode(num + 65));
+        columnNumber = Math.floor(columnNumber / 26);
+    }
+    return res.join('');
+};