From eb2dabb284f754277ab72aa418ef778646f91dcd Mon Sep 17 00:00:00 2001
From: alyx <alyx@aleteoryx.me>
Date: Fri, 1 Dec 2023 00:27:39 -0500
Subject: 2023, 2023.1

---
 2023/rs/code/one/src/main.rs | 47 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 2023/rs/code/one/src/main.rs

(limited to '2023/rs/code/one/src/main.rs')

diff --git a/2023/rs/code/one/src/main.rs b/2023/rs/code/one/src/main.rs
new file mode 100644
index 0000000..1b04f08
--- /dev/null
+++ b/2023/rs/code/one/src/main.rs
@@ -0,0 +1,47 @@
+static INPUT: &[u8] = include_bytes!("input.txt");
+
+static NUMS: &[&[u8]] = &[ b"one", b"two", b"three", b"four", b"five", b"six", b"seven", b"eight", b"nine" ];
+
+fn main() {
+  let valueified = INPUT.split(|c| *c == b'\n').filter(|s| !s.is_empty());
+
+  let calvals = valueified.clone().map(|s| {
+    let mut d1 = 0;
+    let mut d2 = 0;
+    for c in s {
+      if *c >= b'0' && *c <= b'9' {
+        if d1 == 0 { d1 = *c; }
+        d2 = *c;
+      }
+    }
+    if d1 != 0 { ((d1 - b'0') * 10 + (d2 - b'0')) as u32 } else { 0 }
+  });
+
+  let sum = calvals.sum::<u32>();
+  println!("Sum of Calibration Values: {sum}");
+
+  let calvals = valueified.map(|s| {
+    let mut d1 = 0;
+    let mut d2 = 0;
+    for i in 0..s.len() {
+      let c = s[i];
+      if c >= b'0' && c <= b'9' {
+        if d1 == 0 { d1 = c; }
+        d2 = c;
+      }
+      else {
+        for i2 in 0..NUMS.len() {
+          let num = NUMS[i2];
+          if s.len() >= i + num.len() && &s[i..i+num.len()] == num {
+            if d1 == 0 { d1 = i2 as u8 + b'1'; }
+            d2 = i2 as u8 + b'1';
+          }
+        }
+      }
+    }
+    if d1 != 0 { ((d1 - b'0') * 10 + (d2 - b'0')) as u32 } else { 0 }
+  });
+
+  let sum = calvals.sum::<u32>();
+  println!("Sum of (word-included) Calibration Values: {sum}");
+}
-- 
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