feat: add typescript solution to lc problem: No.0048.Rotate Image

Author: zhaocchen

solution/0000-0099/0048.Rotate Image/README.md

@@ -103,6 +103,26 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+/**
+ Do not return anything, modify matrix in-place instead.
+ */
+function rotate(matrix: number[][]): void {
+    let n = matrix[0].length;
+    for (let i = 0; i < Math.floor(n / 2); i++) {
+        for (let j = 0; j < Math.floor((n + 1) / 2); j++) {
+            let tmp = matrix[i][j];
+            matrix[i][j] = matrix[n-1-j][i];
+            matrix[n - 1 - j][i] = matrix[n - 1 - i][n - 1 - j];
+            matrix[n - 1 - i][n - 1 - j] = matrix[j][n - 1 - i];
+            matrix[j][n - 1 - i] = tmp;
+        }
+    }
+};
+```
+
 ### **...**
 
 ```

solution/0000-0099/0048.Rotate Image/README_EN.md

@@ -93,6 +93,26 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+/**
+ Do not return anything, modify matrix in-place instead.
+ */
+function rotate(matrix: number[][]): void {
+    let n = matrix[0].length;
+    for (let i = 0; i < Math.floor(n / 2); i++) {
+        for (let j = 0; j < Math.floor((n + 1) / 2); j++) {
+            let tmp = matrix[i][j];
+            matrix[i][j] = matrix[n-1-j][i];
+            matrix[n - 1 - j][i] = matrix[n - 1 - i][n - 1 - j];
+            matrix[n - 1 - i][n - 1 - j] = matrix[j][n - 1 - i];
+            matrix[j][n - 1 - i] = tmp;
+        }
+    }
+};
+```
+
 ### **...**
 
 ```

solution/0000-0099/0048.Rotate Image/Solution.ts

@@ -0,0 +1,15 @@
+/**
+ Do not return anything, modify matrix in-place instead.
+ */
+ function rotate(matrix: number[][]): void {
+    let n = matrix[0].length;
+    for (let i = 0; i < Math.floor(n / 2); i++) {
+        for (let j = 0; j < Math.floor((n + 1) / 2); j++) {
+            let tmp = matrix[i][j];
+            matrix[i][j] = matrix[n-1-j][i];
+            matrix[n - 1 - j][i] = matrix[n - 1 - i][n - 1 - j];
+            matrix[n - 1 - i][n - 1 - j] = matrix[j][n - 1 - i];
+            matrix[j][n - 1 - i] = tmp;
+        }
+    }
+};