增加0383.赎金信Rust語言版本

Note:
- leetcode提交通過

problems/0383.赎金信.md

@@ -315,6 +315,28 @@ func canConstruct(_ ransomNote: String, _ magazine: String) -> Bool {
 }
 ```
 
+Rust:
+```rust
+impl Solution {
+    pub fn can_construct(ransom_note: String, magazine: String) -> bool {
+        let baseChar = 'a';
+        let mut record = vec![0; 26];
+        
+        for byte in magazine.bytes() {
+            record[byte as usize - baseChar as usize] += 1;
+        }
+        
+        for byte in ransom_note.bytes() {
+            record[byte as usize - baseChar as usize] -= 1;
+            if record[byte as usize - baseChar as usize] < 0 {
+                return false;
+            }
+        }
+        
+        return true;
+    }
+}
+```
 
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 * 作者微信：[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw)