feat: add rust solution to lc problem: No.0767 (doocs#1501)

Author: xzhseh

solution/0700-0799/0767.Reorganize String/README.md

@@ -260,6 +260,54 @@ public:
 };
 ```
 
+### **Rust**
+
+```rust
+use std::collections::{HashMap, BinaryHeap, VecDeque};
+
+impl Solution {
+    #[allow(dead_code)]
+    pub fn reorganize_string(s: String) -> String {
+        let mut map = HashMap::new();
+        let mut pq = BinaryHeap::new();
+        let mut ret = String::new();
+        let mut queue = VecDeque::new();
+        let n = s.len();
+
+        // Initialize the HashMap
+        for c in s.chars() {
+            map
+                .entry(c)
+                .and_modify(|e| *e += 1)
+                .or_insert(1);
+        }
+
+        // Initialize the binary heap
+        for (k, v) in map.iter() {
+            if 2 * *v  - 1 > n {
+                return "".to_string();
+            } else {
+                pq.push((*v, *k));
+            }
+        }
+
+        while !pq.is_empty() {
+            let (v, k) = pq.pop().unwrap();
+            ret.push(k);
+            queue.push_back((v - 1, k));
+            if queue.len() == 2 {
+                let (v, k) = queue.pop_front().unwrap();
+                if v != 0 {
+                    pq.push((v, k));
+                }
+            }
+        }
+
+        if ret.len() == n { ret } else { "".to_string() }
+    }
+}
+```
+
 ### **Go**
 
 ```go

solution/0700-0799/0767.Reorganize String/README_EN.md

@@ -220,6 +220,54 @@ public:
 };
 ```
 
+### **Rust**
+
+```rust
+use std::collections::{HashMap, BinaryHeap, VecDeque};
+
+impl Solution {
+    #[allow(dead_code)]
+    pub fn reorganize_string(s: String) -> String {
+        let mut map = HashMap::new();
+        let mut pq = BinaryHeap::new();
+        let mut ret = String::new();
+        let mut queue = VecDeque::new();
+        let n = s.len();
+
+        // Initialize the HashMap
+        for c in s.chars() {
+            map
+                .entry(c)
+                .and_modify(|e| *e += 1)
+                .or_insert(1);
+        }
+
+        // Initialize the binary heap
+        for (k, v) in map.iter() {
+            if 2 * *v  - 1 > n {
+                return "".to_string();
+            } else {
+                pq.push((*v, *k));
+            }
+        }
+
+        while !pq.is_empty() {
+            let (v, k) = pq.pop().unwrap();
+            ret.push(k);
+            queue.push_back((v - 1, k));
+            if queue.len() == 2 {
+                let (v, k) = queue.pop_front().unwrap();
+                if v != 0 {
+                    pq.push((v, k));
+                }
+            }
+        }
+
+        if ret.len() == n { ret } else { "".to_string() }
+    }
+}
+```
+
 ### **Go**
 
 ```go

solution/0700-0799/0767.Reorganize String/Solution.rs

@@ -0,0 +1,43 @@
+use std::collections::{HashMap, BinaryHeap, VecDeque};
+
+impl Solution {
+    #[allow(dead_code)]
+    pub fn reorganize_string(s: String) -> String {
+        let mut map = HashMap::new();
+        let mut pq = BinaryHeap::new();
+        let mut ret = String::new();
+        let mut queue = VecDeque::new();
+        let n = s.len();
+
+        // Initialize the HashMap
+        for c in s.chars() {
+            map
+                .entry(c)
+                .and_modify(|e| *e += 1)
+                .or_insert(1);
+        }
+
+        // Initialize the binary heap
+        for (k, v) in map.iter() {
+            if 2 * *v  - 1 > n {
+                return "".to_string();
+            } else {
+                pq.push((*v, *k));
+            }
+        }
+
+        while !pq.is_empty() {
+            let (v, k) = pq.pop().unwrap();
+            ret.push(k);
+            queue.push_back((v - 1, k));
+            if queue.len() == 2 {
+                let (v, k) = queue.pop_front().unwrap();
+                if v != 0 {
+                    pq.push((v, k));
+                }
+            }
+        }
+
+        if ret.len() == n { ret } else { "".to_string() }
+    }
+}