feat: add rust solution to lc problem: No.2591 (#1176)

Author: dierbei

solution/2500-2599/2591.Distribute Money to Maximum Children/README.md

@@ -161,6 +161,28 @@ function distMoney(money: number, children: number): number {
 }
 ```
 
+### **Rust**
+
+```rust
+impl Solution {
+    pub fn dist_money(money: i32, children: i32) -> i32 {
+        if money < children {
+            return -1
+        }
+
+        if money > children * 8 {
+            return children - 1
+        }
+
+        if money == children * 8 - 4 {
+            return children - 2
+        }
+
+        (money - children) / 7
+    }
+}
+```
+
 ### **...**
 
 ```

solution/2500-2599/2591.Distribute Money to Maximum Children/README_EN.md

@@ -153,6 +153,28 @@ function distMoney(money: number, children: number): number {
 }
 ```
 
+### **Rust**
+
+```rust
+impl Solution {
+    pub fn dist_money(money: i32, children: i32) -> i32 {
+        if money < children {
+            return -1
+        }
+
+        if money > children * 8 {
+            return children - 1
+        }
+
+        if money == children * 8 - 4 {
+            return children - 2
+        }
+
+        (money - children) / 7
+    }
+}
+```
+
 ### **...**
 
 ```

solution/2500-2599/2591.Distribute Money to Maximum Children/Solution.rs

@@ -0,0 +1,17 @@
+impl Solution {
+    pub fn dist_money(money: i32, children: i32) -> i32 {
+        if money < children {
+            return -1
+        }
+
+        if money > children * 8 {
+            return children - 1
+        }
+
+        if money == children * 8 - 4 {
+            return children - 2
+        }
+
+        (money - children) / 7
+    }
+}