day1

day1/Cargo.lock

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+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "day1"
+version = "0.1.0"

day1/Cargo.toml

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+[package]
+name = "day1"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

day1/src/main.rs

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+use std::{fs::File, io::Read};
+
+fn main() {
+    let word_numbers: Vec<String> = vec![
+        String::from("zero"),
+        String::from("one"),
+        String::from("two"),
+        String::from("three"),
+        String::from("four"),
+        String::from("five"),
+        String::from("six"),
+        String::from("seven"),
+        String::from("eight"),
+        String::from("nine"),
+    ];
+    let data = get_data("data.txt");
+
+    let mut values: Vec<u32> = Vec::new();
+
+    for n in 0..data.len() {
+        let line = &data[n];
+
+        let digits = format!(
+            "{}{}",
+            get_first_digit(&word_numbers, line),
+            get_last_digit(&word_numbers, line)
+        );
+
+        let combined: u32 = match digits.parse() {
+            Ok(i) => i,
+            Err(err) => panic!("failed to parse digits: {} - {:?}", digits, err),
+        };
+
+        values.push(combined);
+    }
+
+    let total: u32 = values.iter().sum();
+
+    println!("## TOTAL: {} ##", total);
+}
+
+fn get_last_digit(word_numbers: &Vec<String>, line: &String) -> char {
+    if line.len() == 0 {
+        return '0';
+    }
+
+    let mut idx_word = 0;
+    let mut word: &String = &String::new();
+    for n in 0..word_numbers.len() {
+        let w = &word_numbers[n];
+        let mut is_match = false;
+
+        let idx = match line.rfind(&word_numbers[n]) {
+            Some(i) => {
+                is_match = true;
+                i
+            }
+            None => 0,
+        };
+
+        if is_match && idx >= idx_word {
+            idx_word = idx;
+            word = w;
+        }
+    }
+
+    let mut idx_char = line.len() - 1;
+    let mut digit: char = '0';
+    for c in line.chars().rev() {
+        if c.is_digit(10) {
+            digit = c;
+            break;
+        }
+
+        if idx_char > 0 {
+            idx_char -= 1;
+        }
+    }
+
+    if !word.is_empty() && idx_word >= idx_char {
+        return get_digit_from_str(word);
+    } else {
+        return digit;
+    }
+}
+
+fn get_first_digit(word_numbers: &Vec<String>, line: &String) -> char {
+    let mut idx_word = line.len();
+    let mut word: &String = &String::new();
+    for n in 0..word_numbers.len() {
+        let w = &word_numbers[n];
+
+        let idx = match line.find(&word_numbers[n]) {
+            Some(i) => i,
+            None => line.len(),
+        };
+
+        if idx < idx_word {
+            idx_word = idx;
+            word = w;
+        }
+    }
+
+    let mut idx_char = 0;
+    let mut digit: char = '0';
+    for c in line.chars() {
+        if c.is_digit(10) {
+            digit = c;
+            break;
+        }
+
+        idx_char += 1;
+    }
+
+    if idx_word == idx_char {
+        return '0';
+    }
+
+    if idx_word < idx_char {
+        return get_digit_from_str(word);
+    } else {
+        return digit;
+    }
+}
+
+fn get_data(path: &str) -> Vec<String> {
+    let mut data = match File::open(path) {
+        Ok(file) => file,
+        Err(err) => panic!("failed to read the data file: {:?}", err),
+    };
+
+    let mut content = String::new();
+    data.read_to_string(&mut content)
+        .ok()
+        .expect("failed to parse file");
+
+    let lines: Vec<String> = content.split("\n").map(|l| l.to_string()).collect();
+
+    return lines;
+}
+
+fn get_digit_from_str(word: &str) -> char {
+    match word {
+        "zero" => return '0',
+        "one" => return '1',
+        "two" => return '2',
+        "three" => return '3',
+        "four" => return '4',
+        "five" => return '5',
+        "six" => return '6',
+        "seven" => return '7',
+        "eight" => return '8',
+        "nine" => return '9',
+        _ => return '0',
+    }
+}

day1/target/.rustc_info.json

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+{"rustc_fingerprint":17255368705219526691,"outputs":{"4614504638168534921":{"success":true,"status":"","code":0,"stdout":"rustc 1.72.1 (d5c2e9c34 2023-09-13)\nbinary: rustc\ncommit-hash: d5c2e9c342b358556da91d61ed4133f6f50fc0c3\ncommit-date: 2023-09-13\nhost: x86_64-unknown-linux-gnu\nrelease: 1.72.1\nLLVM version: 16.0.5\n","stderr":""},"15729799797837862367":{"success":true,"status":"","code":0,"stdout":"___\nlib___.rlib\nlib___.so\nlib___.so\nlib___.a\nlib___.so\n/home/mimu/.rustup/toolchains/stable-x86_64-unknown-linux-gnu\noff\npacked\nunpacked\n___\ndebug_assertions\npanic=\"unwind\"\nproc_macro\ntarget_arch=\"x86_64\"\ntarget_endian=\"little\"\ntarget_env=\"gnu\"\ntarget_family=\"unix\"\ntarget_feature=\"fxsr\"\ntarget_feature=\"sse\"\ntarget_feature=\"sse2\"\ntarget_has_atomic=\"16\"\ntarget_has_atomic=\"32\"\ntarget_has_atomic=\"64\"\ntarget_has_atomic=\"8\"\ntarget_has_atomic=\"ptr\"\ntarget_os=\"linux\"\ntarget_pointer_width=\"64\"\ntarget_vendor=\"unknown\"\nunix\n","stderr":""}},"successes":{}}

day1/target/CACHEDIR.TAG

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+Signature: 8a477f597d28d172789f06886806bc55
+# This file is a cache directory tag created by cargo.
+# For information about cache directory tags see https://bford.info/cachedir/

day1/target/debug/.fingerprint/day1-4592670e843f8e91/invoked.timestamp

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+This file has an mtime of when this was started.

day1/target/debug/.fingerprint/day1-4592670e843f8e91/test-bin-day1

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+48fb439fb25dba7f

day1/target/debug/.fingerprint/day1-4592670e843f8e91/test-bin-day1.json

@@ -0,0 +1 @@
+{"rustc":11325937081331929426,"features":"[]","target":11548893223606093704,"profile":18326522262828315194,"path":1684066648322511884,"deps":[],"local":[{"CheckDepInfo":{"dep_info":"debug/.fingerprint/day1-4592670e843f8e91/dep-test-bin-day1"}}],"rustflags":[],"metadata":7797948686568424061,"config":2202906307356721367,"compile_kind":0}

day1/target/debug/.fingerprint/day1-8ad641c4d6186058/bin-day1

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+55ff79776156b9b3

day1/target/debug/.fingerprint/day1-8ad641c4d6186058/bin-day1.json

@@ -0,0 +1 @@
+{"rustc":11325937081331929426,"features":"[]","target":11548893223606093704,"profile":13126374248311259211,"path":1684066648322511884,"deps":[],"local":[{"CheckDepInfo":{"dep_info":"debug/.fingerprint/day1-8ad641c4d6186058/dep-bin-day1"}}],"rustflags":[],"metadata":7797948686568424061,"config":2202906307356721367,"compile_kind":0}

day1/target/debug/.fingerprint/day1-8ad641c4d6186058/invoked.timestamp

@@ -0,0 +1 @@
+This file has an mtime of when this was started.

day1/target/debug/.fingerprint/day1-c8622095bd0e97ba/bin-day1

@@ -0,0 +1 @@
+d56c632af2247a7d

day1/target/debug/.fingerprint/day1-c8622095bd0e97ba/bin-day1.json

@@ -0,0 +1 @@
+{"rustc":11325937081331929426,"features":"[]","target":11548893223606093704,"profile":11039742474438789458,"path":1684066648322511884,"deps":[],"local":[{"CheckDepInfo":{"dep_info":"debug/.fingerprint/day1-c8622095bd0e97ba/dep-bin-day1"}}],"rustflags":[],"metadata":7797948686568424061,"config":2202906307356721367,"compile_kind":0}

day1/target/debug/.fingerprint/day1-c8622095bd0e97ba/invoked.timestamp

@@ -0,0 +1 @@
+This file has an mtime of when this was started.

day1/target/debug/day1.d

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+/home/mimu/projects/aoc2023/day1/target/debug/day1: /home/mimu/projects/aoc2023/day1/src/main.rs

day1/target/debug/deps/day1-4592670e843f8e91.d

@@ -0,0 +1,5 @@
+/home/mimu/projects/aoc2023/day1/target/debug/deps/day1-4592670e843f8e91.rmeta: src/main.rs
+
+/home/mimu/projects/aoc2023/day1/target/debug/deps/day1-4592670e843f8e91.d: src/main.rs
+
+src/main.rs:

day1/target/debug/deps/day1-8ad641c4d6186058.d

@@ -0,0 +1,5 @@
+/home/mimu/projects/aoc2023/day1/target/debug/deps/day1-8ad641c4d6186058.rmeta: src/main.rs
+
+/home/mimu/projects/aoc2023/day1/target/debug/deps/day1-8ad641c4d6186058.d: src/main.rs
+
+src/main.rs:

day1/target/debug/deps/day1-c8622095bd0e97ba.d

@@ -0,0 +1,5 @@
+/home/mimu/projects/aoc2023/day1/target/debug/deps/day1-c8622095bd0e97ba: src/main.rs
+
+/home/mimu/projects/aoc2023/day1/target/debug/deps/day1-c8622095bd0e97ba.d: src/main.rs
+
+src/main.rs: