From 810b7fbf7713de1a84ecbb0ac4600c15de3d3736 Mon Sep 17 00:00:00 2001
From: Jim Infield <jinfield@gmail.com>
Date: Tue, 17 Aug 2021 18:29:53 -0500
Subject: [PATCH] Revised working copy...

switch from for loop to iteration chain
cleanup calculation code
output source string
---
 src/main.rs | 40 ++++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 4040a3a..cc0730c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -13,36 +13,36 @@ fn main() {
 //  };
 
     let strings = args[0];
-    let mut times = vec![];
 
-    for t in strings.split(", ") {
-        // split t on '|' and gather ints for h,m,s
-        let e: Vec<_> = t.split('|')
-            .map(|i| i.parse::<usize>().unwrap())
-            .collect();
-        // convert h,m,s into total seconds
-        times.push(e[0]*3600 + e[1]*60 + e[2])
-    }
-    
+    let mut times =
+        strings.split(", ")
+        .map(|s|
+            s.split('|')
+            .map(|e| e.parse::<usize>().unwrap())
+            .collect::<Vec<usize>>()
+            .chunks(3)
+            .map(|c| (c[0],c[1],c[2]))
+            .map(|(h,m,s)| h*3600 + m*60 + s)
+            .sum()
+        )
+        .collect::<Vec<usize>>();
+
     times.sort_unstable();
 
-    let tot = times.iter().sum::<usize>();
-    let len = times.len();
-    let avg = tot/len;
-    let rng = times[len-1] - times[0];
-    let med = if len%2 == 1 {
-        times[len/2]
-    } else {
-        (times[len/2-1] + times[len])/2
-    };
+    let (tot, len) = (times.iter().sum::<usize>(), times.len());
+    let (avg, mid, rng) = (tot/len, len/2, times[len-1] - times[0]);
+    let med = if len % 2 == 1 { times[mid] }
+        else { (times[mid-1] + times[mid]) / 2 };
 
     let format_time = |s| {
         format!("{:02}|{:02}|{:02}", s/3600, s%3600/60, s%60)
     };
-     
+
+    println!("\n{}", strings);
     println!("Range: {} Average: {} Median: {}",
         format_time(rng), format_time(avg), format_time(med)
     );
+
     println!();
 }