Merge pull request #2242 from fwqaaq/master-3

Update 0503.下一个更大元素II.md about rust

problems/0503.下一个更大元素II.md

@@ -293,6 +293,28 @@ impl Solution {
 }
 ```
 
+> 版本二：
+
+```rust
+impl Solution {
+    pub fn next_greater_elements(nums: Vec<i32>) -> Vec<i32> {
+        let (mut stack, mut res) = (vec![], vec![-1; nums.len()]);
+
+        for i in 0..nums.len() * 2 {
+            while let Some(&top) = stack.last() {
+                if nums[i % nums.len()] <= nums[top] {
+                    break;
+                }
+                let saved_index = stack.pop().unwrap();
+                res[saved_index] = nums[i % nums.len()];
+            }
+            stack.push(i % nums.len());
+        }
+
+        res
+    }
+}
+```
 
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