Bandera tricolor en Rust

src/Rust/003.rs

@@ -0,0 +1,20 @@
+const ORDER: [&str; 3] = ["R", "A", "M"];
+
+fn tricolor_flag<'a>(lst: &[&'a str]) -> Vec<&'a str> {
+    let mut ordered_lst = lst.to_vec();
+    ordered_lst.sort_by_key(|s| {
+        ORDER
+            .iter()
+            .position(|&v| v == *s)
+    });
+    
+    return ordered_lst
+}
+
+fn main() {
+    let check = vec!["M","R","A","A","R","R","A","M","M"];
+    println!("{:?}", tricolor_flag(&check)); // [R,R,R,A,A,A,M,M,M]
+
+    let check = vec!["M", "R", "A", "R", "R", "A"];
+    println!("{:?}", tricolor_flag(&check)); // [R,R,R,A,A,M]
+}