aoc2022

commit a24ae8e1d314e20a049f07179162f21378574b17
parent 4636c264b8547acfec3bf7cf0579537f1997cadc
Author: Martin Ashby <martin@ashbysoft.com>
Date:   Sun, 25 Dec 2022 21:28:52 +0000

reorder tests in day25

Diffstat:
M
src/day25.rs
 | 
41
++++++++++++++++++++---------------------

1 file changed, 20 insertions(+), 21 deletions(-)
diff --git a/src/day25.rs b/src/day25.rs
@@ -16,6 +16,26 @@ fn from_snafu(s: &str) -> i64 {
     i
 }
 
+fn to_snafu(mut i: i64) -> String {
+    // how to do this :thinking: add two, mod 5,take away 2? // nope
+    let mut res = Vec::<char>::new();
+    while i != 0 {
+        let d = ((i + 2) % 5) - 2;
+        let ch = match d {
+            2 => '2',
+            1 => '1',
+            0 => '0',
+            -1 => '-',
+            -2 => '=',
+            _ => panic!("unexpected digit {}", d)
+        };
+        res.push(ch);
+        i = (i + 2) / 5;
+    }
+    res.reverse();
+    res.into_iter().collect::<String>()    
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -44,27 +64,6 @@ mod tests {
     }
 }
 
-fn to_snafu(mut i: i64) -> String {
-    // how to do this :thinking: add two, mod 5,take away 2? // nope
-    let mut res = Vec::<char>::new();
-    while i != 0 {
-        let d = ((i + 2) % 5) - 2;
-        let ch = match d {
-            2 => '2',
-            1 => '1',
-            0 => '0',
-            -1 => '-',
-            -2 => '=',
-            _ => panic!("unexpected digit {}", d)
-        };
-        res.push(ch);
-        i = (i + 2) / 5;
-    }
-    res.reverse();
-    res.into_iter().collect::<String>()
-    
-}
-
 pub fn run(input: String) {
     let s: i64 = input.lines()
         .map(from_snafu)