Small fixes

examples/nba-history.rs

@@ -1,5 +1,6 @@
 extern crate intel_mkl_src;
 
+use std::cmp::Ordering;
 use std::collections::HashSet;
 use std::fs;
 use std::io::{self, BufRead};
@@ -39,12 +40,14 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         let score_1: u16 = data[3].parse()?;
         let score_2: u16 = data[4].parse()?;
 
-        if score_1 > score_2 {
-            observations.push((data[1].to_string(), data[2].to_string(), t));
-        } else if score_1 < score_2 {
-            observations.push((data[2].to_string(), data[1].to_string(), t));
-        } else {
-            panic!("there shouldn't be any tie games");
+        match score_1.cmp(&score_2) {
+            Ordering::Greater => {
+                observations.push((data[1].to_string(), data[2].to_string(), t));
+            }
+            Ordering::Less => {
+                observations.push((data[2].to_string(), data[1].to_string(), t));
+            }
+            _ => panic!("there shouldn't be any tie games"),
         }
     }