initial codewars worksheet

src/main.rs

@@ -1,3 +1,30 @@
 fn main() {
-    println!("Hello, world!");
+    println!("");
+
+    let strs = vec!["is2 Thi1s T4est 3a"];
+
+    for str in strs {
+        println!("{} -> {}", str, order(str));
+    }
+
+    println!("");
+}
+
+fn order(sentence: &str) -> String {
+
+    let mut words = vec![];
+
+    for word in sentence.split_whitespace() {
+        let n = word.matches(char::is_numeric).collect::<Vec<&str>>()[0];
+        print!("{:?}\t{:?}\n", n, word);
+    }
+    println!("");
+
+    words = sentence.split_ascii_whitespace()
+        .map(|s| format!("{}{}", s.matches(char::is_numeric).collect::<Vec<&str>>()[0],s))
+        .collect();
+    words.sort();
+
+    words.iter().map(|w| w.trim_start_matches(char::is_numeric)).collect::<Vec<&str>>().join(" ")
+
 }