From f0e5a71c849b13bbfd243906f4d37a1373787323 Mon Sep 17 00:00:00 2001
From: Zynh0722 <Zynh0722@gmail.com>
Date: Fri, 1 Dec 2023 01:10:18 -0800
Subject: [PATCH] day one part one

---
 one/.gitignore  |    1 +
 one/Cargo.lock  |    7 +
 one/Cargo.toml  |    8 +
 one/input       | 1000 +++++++++++++++++++++++++++++++++++++++++++++++
 one/output      |    1 +
 one/src/main.rs |   20 +
 6 files changed, 1037 insertions(+)
 create mode 100644 one/.gitignore
 create mode 100644 one/Cargo.lock
 create mode 100644 one/Cargo.toml
 create mode 100644 one/input
 create mode 100644 one/output
 create mode 100644 one/src/main.rs

diff --git a/one/.gitignore b/one/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/one/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/one/Cargo.lock b/one/Cargo.lock
new file mode 100644
index 0000000..f655c3c
--- /dev/null
+++ b/one/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "one"
+version = "0.1.0"
diff --git a/one/Cargo.toml b/one/Cargo.toml
new file mode 100644
index 0000000..dcf4350
--- /dev/null
+++ b/one/Cargo.toml
@@ -0,0 +1,8 @@
+[package]
+name = "one"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
diff --git a/one/input b/one/input
new file mode 100644
index 0000000..f888ae8
--- /dev/null
+++ b/one/input
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diff --git a/one/output b/one/output
new file mode 100644
index 0000000..4933c15
--- /dev/null
+++ b/one/output
@@ -0,0 +1 @@
+54304
\ No newline at end of file
diff --git a/one/src/main.rs b/one/src/main.rs
new file mode 100644
index 0000000..d292dec
--- /dev/null
+++ b/one/src/main.rs
@@ -0,0 +1,20 @@
+use std::io::{self, Read};
+
+fn main() {
+    let mut buf = String::new();
+    io::stdin().read_to_string(&mut buf).unwrap();
+
+    let lines: Vec<String> = buf.lines().map(ToOwned::to_owned).collect();
+
+    let answer: Result<i32, _> = lines
+        .into_iter()
+        .map(|l| l.chars().filter(char::is_ascii_digit).collect())
+        .map(|s: String| [s.chars().next().unwrap(), s.chars().last().unwrap()].to_owned())
+        .map(String::from_iter)
+        .map(|s| s.parse::<i32>())
+        .sum();
+
+    let answer = answer.unwrap();
+
+    print!("{answer}");
+}