add solution in rust: 605. Can Place Flowers

Signed-off-by: rajput-hemant <rajput.hemant2001@gmail.com>

Author: rajput-hemant

src/0601-0700/605 - Can Place Flowers/can_place_flowers.rs

@@ -0,0 +1,18 @@
+impl Solution {
+    pub fn can_place_flowers(flowerbed: Vec<i32>, mut n: i32) -> bool {
+        let mut empty = if flowerbed[0] == 0 { 1 } else { 0 };
+
+        for &x in &flowerbed {
+            if x == 0 {
+                empty += 1;
+            } else {
+                n -= (empty - 1) / 2;
+                empty = 0;
+            }
+        }
+
+        n -= empty / 2;
+
+        n <= 0
+    }
+}