From ae0f2a3aafdaa60e3f95d10fb651735e4a02fa5e Mon Sep 17 00:00:00 2001
From: electria <elec3137+git@proton.me>
Date: Thu, 16 Jul 2026 10:51:44 -0700
Subject: [PATCH] feat: print a reasonable number of significant digits

---
 src/main.rs | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/main.rs b/src/main.rs
index 107dbf5..eeaba03 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -22,5 +22,16 @@ fn main() {
         }
     };
 
-    println!("{:.3}", parse_and_calc(&input));
+    let result = parse_and_calc(&input);
+
+    let result_raw_string = format!("{}", result);
+    let mut significant_digits = result_raw_string.len() - 1;
+    for (i, _) in result_raw_string.char_indices() {
+        if !result_raw_string[i..result_raw_string.len()].contains(|c| matches!(c, '1'..'9')) {
+            significant_digits = i;
+            break;
+        }
+    }
+
+    println!("{result:.significant_digits$}");
 }