feat: add solutions to lc problem: No.1323

No.1323.Maximum 69 Number

Author: YangFong

solution/1300-1399/1323.Maximum 69 Number/README.md

@@ -110,6 +110,42 @@ func maximum69Number(num int) int {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function maximum69Number(num: number): number {
+    return Number((num + '').replace('6', '9'));
+}
+```
+
+### **Rust**
+
+```rust
+impl Solution {
+    pub fn maximum69_number(num: i32) -> i32 {
+        num.to_string().replacen('6', "9", 1).parse().unwrap()
+    }
+}
+```
+
+### **C**
+
+```c
+int maximum69Number(int num) {
+    int n = 0;
+    int i = 0;
+    int t = num;
+    while (t) {
+        n++;
+        if (t % 10 == 6) {
+            i = n;
+        }
+        t /= 10;
+    }
+    return num + 3 * pow(10, i - 1);
+}
+```
+
 ### **...**
 
 ```

solution/1300-1399/1323.Maximum 69 Number/README_EN.md

@@ -103,6 +103,43 @@ func maximum69Number(num int) int {
 }
 ```
 
+
+### **TypeScript**
+
+```ts
+function maximum69Number(num: number): number {
+    return Number((num + '').replace('6', '9'));
+}
+```
+
+### **Rust**
+
+```rust
+impl Solution {
+    pub fn maximum69_number(num: i32) -> i32 {
+        num.to_string().replacen('6', "9", 1).parse().unwrap()
+    }
+}
+```
+
+### **C**
+
+```c
+int maximum69Number(int num) {
+    int n = 0;
+    int i = 0;
+    int t = num;
+    while (t) {
+        n++;
+        if (t % 10 == 6) {
+            i = n;
+        }
+        t /= 10;
+    }
+    return num + 3 * pow(10, i - 1);
+}
+```
+
 ### **...**
 
 ```

solution/1300-1399/1323.Maximum 69 Number/Solution.c

@@ -0,0 +1,13 @@
+int maximum69Number(int num) {
+    int n = 0;
+    int i = 0;
+    int t = num;
+    while (t) {
+        n++;
+        if (t % 10 == 6) {
+            i = n;
+        }
+        t /= 10;
+    }
+    return num + 3 * pow(10, i - 1);
+}

solution/1300-1399/1323.Maximum 69 Number/Solution.rs

@@ -0,0 +1,5 @@
+impl Solution {
+    pub fn maximum69_number(num: i32) -> i32 {
+        num.to_string().replacen('6', "9", 1).parse().unwrap()
+    }
+}

solution/1300-1399/1323.Maximum 69 Number/Solution.ts

@@ -0,0 +1,3 @@
+function maximum69Number(num: number): number {
+    return Number((num + '').replace('6', '9'));
+}