update template.cpp template.rs

templates/template.rs

@@ -1,3 +1,8 @@
+use std::io::{read_to_string, stdin};
+
 fn main() {
-    
+    let temp = read_to_string(stdin()).unwrap();
+    let mut iter = temp
+        .split_ascii_whitespace()
+        .map(|x| x.parse::<usize>().unwrap());
 }