add day 1 and 2

day02/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "day02"
+version = "0.1.0"

day02/Cargo.toml

@@ -0,0 +1,6 @@
+[package]
+name = "day02"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

day02/example.txt

@@ -0,0 +1,4 @@
+ULL
+RRDDD
+LURDL
+UUUUD

day02/input.txt

@@ -0,0 +1,5 @@
+LLRRLLRLDDUURLLRDUUUDULUDLUULDRDDDULLLRDDLLLRRDDRRUDDURDURLRDDULRRRLLULLULLRUULDLDDDUUURRRRURURDUDLLRRLDLLRRDRDLLLDDRRLUDDLDDLRDRDRDDRUDDRUUURLDUDRRLULLLDRDRRDLLRRLDLDRRRRLURLLURLRDLLRUDDRLRDRRURLDULURDLUUDURLDRURDRDLULLLLDUDRLLURRLRURUURDRRRULLRULLDRRDDDULDURDRDDRDUDUDRURRRRUUURRDUUDUDDDLRRUUDDUUDDDUDLDRDLRDUULLRUUDRRRDURLDDDLDLUULUDLLRDUDDDDLDURRRDRLLRUUUUDRLULLUUDRLLRDLURLURUDURULUDULUDURUDDULDLDLRRUUDRDDDRLLRRRRLDRRRD
+DRRRDULLRURUDRLRDLRULRRLRLDLUDLUURUUURURULRLRUDRURRRLLUDRLLDUDULLUUDLLUUUDDRLRUDDDDLDDUUDULDRRRDULUULDULDRUUULRUDDDUDRRLRLUDDURLLDRLUDUDURUUDRLUURRLUUUDUURUDURLUUUDRDRRRDRDRULLUURURDLUULLDUULUUDULLLDURLUDRURULDLDLRDRLRLUURDDRLDDLRRURUDLUDDDLDRLULLDRLLLURULLUURLUDDURRDDLDDDDRDUUULURDLUUULRRLRDLDRDDDRLLRUDULRRRUDRRLDRRUULUDDLLDUDDRLRRDLDDULLLRDURRURLLULURRLUULULRDLULLUUULRRRLRUDLRUUDDRLLLLLLLURLDRRUURLDULDLDDRLLLRDLLLDLRUUDRURDRDLUULDDRLLRRURRDULLULURRDULRUDUDRLUUDDDDUULDDDUUDURLRUDDULDDDDRUULUUDLUDDRDRD
+RRRULLRULDRDLDUDRRDULLRLUUDLULLRUULULURDDDLLLULRURLLURUDLRDLURRRLRLDLLRRURUDLDLRULDDULLLUUDLDULLDRDLRUULDRLURRRRUDDLUDLDDRUDDUULLRLUUDLUDUDRLRUULURUDULDLUUDDRLLUUURRURUDDRURDLDRRDRULRRRRUUUDRDLUUDDDUDRLRLDRRRRUDDRLLRDRLUDRURDULUUURUULLRDUUULRULRULLRULRLUDUDDULURDDLLURRRULDRULDUUDDULDULDRLRUULDRDLDUDRDUDLURLLURRDLLDULLDRULDLLRDULLRURRDULUDLULRRUDDULRLDLDLLLDUDLURURRLUDRRURLDDURULDURRDUDUURURULLLUDDLDURURRURDDDRRDRURRUURRLDDLRRLDDULRLLLDDUDRULUULLULUULDRLURRRLRRRLDRRLULRLRLURDUULDDUDLLLUURRRLDLUDRLLLRRUU
+URLDDDLDRDDDURRRLURRRRLULURLDDUDRDUDDLURURLLRDURDDRLRUURLDLLRDLRUUURLRLDLDRUDDDULLDULLDUULURLDRDUDRRLRRLULRDDULUDULDULLULDLRRLRRLLULRULDLLDULRRLDURRRRDLURDLUDUUUDLURRRRRUDDUDUUDULDLURRDRLRLUDUDUUDULDDURUDDRDRUDLRRUDRULDULRDRLDRUDRLLRUUDDRLURURDRRLRURULLDUUDRDLULRUULUDURRULLRLUUUUUDULRLUUDRDUUULLULUDUDDLLRRLDURRDDDLUDLUUDULUUULDLLLLUUDURRUDUDLULDRRRULLLURDURDDLRRULURUDURULRDRULLRURURRUDUULRULUUDDUDDUURLRLURRRRDLULRRLDRRDURUDURULULLRUURLLDRDRURLLLUUURUUDDDLDURRLLUUUUURLLDUDLRURUUUDLRLRRLRLDURURRURLULDLRDLUDDULLDUDLULLUUUDLRLDUURRR
+RLLDRDURRUDULLURLRLLURUDDLULUULRRRDRLULDDRLUDRDURLUULDUDDDDDUDDDDLDUDRDRRLRLRLURDURRURDLURDURRUUULULLUURDLURDUURRDLDLDDUURDDURLDDDRUURLDURRURULURLRRLUDDUDDDLLULUDUUUDRULLLLULLRDDRDLRDRRDRRDLDLDDUURRRDDULRUUURUDRDDLRLRLRRDLDRDLLDRRDLLUULUDLLUDUUDRDLURRRRULDRDRUDULRLLLLRRULDLDUUUURLDULDDLLDDRLLURLUDULURRRUULURDRUDLRLLLRDDLULLDRURDDLLDUDRUDRLRRLULLDRRDULDLRDDRDUURDRRRLRDLDUDDDLLUDURRUUULLDRLUDLDRRRRDDDLLRRDUURURLRURRDUDUURRDRRUDRLURLUDDDLUDUDRDRURRDDDDRDLRUDRDRLLDULRURULULDRLRLRRLDURRRUL

day02/src/main.rs

@@ -0,0 +1,130 @@
+fn main() {
+    let data: Vec<Vec<_>> = std::fs::read_to_string("input.txt")
+        .unwrap()
+        .lines()
+        .map(|l| l.chars().collect())
+        .collect();
+
+    part1(&data);
+    part2(&data);
+}
+
+fn part2(data: &[Vec<char>]) {
+    let mut x = 1;
+    let mut y = 1;
+
+    for line in data {
+        for c in line {
+            match c {
+                'U' => {
+                    if x == 2 && y < 4 {
+                        y += 1;
+                    }
+                    if [1, 3].contains(&x) && y < 3 {
+                        y += 1;
+                    }
+                }
+                'L' => {
+                    if y == 2 && x > 0 {
+                        x -= 1;
+                    }
+                    if [1, 3].contains(&y) && x > 1 {
+                        x -= 1;
+                    }
+                }
+                'D' => {
+                    if x == 2 && y > 0 {
+                        y -= 1;
+                    }
+                    if [1, 3].contains(&x) && y > 1 {
+                        y -= 1;
+                    }
+                }
+                'R' => {
+                    if y == 2 && x < 4 {
+                        x += 1;
+                    }
+                    if [1, 3].contains(&y) && x < 3 {
+                        x += 1;
+                    }
+                }
+                _ => panic!(),
+            }
+        }
+        print!("{}", convert2(x, y));
+    }
+    println!();
+}
+
+fn part1(data: &[Vec<char>]) {
+    let mut x = 1;
+    let mut y = 1;
+
+    for line in data {
+        for c in line {
+            match c {
+                'U' => {
+                    y += 1;
+                    if y > 2 {
+                        y = 2;
+                    }
+                }
+                'L' => {
+                    x -= 1;
+                    if x < 0 {
+                        x = 0;
+                    }
+                }
+                'D' => {
+                    y -= 1;
+                    if y < 0 {
+                        y = 0;
+                    }
+                }
+                'R' => {
+                    x += 1;
+                    if x > 2 {
+                        x = 2;
+                    }
+                }
+                _ => panic!(),
+            }
+        }
+        print!("{}", convert(x, y));
+    }
+    println!();
+}
+
+fn convert(x: i32, y: i32) -> i32 {
+    match (x, y) {
+        (0, 0) => 7,
+        (0, 1) => 4,
+        (0, 2) => 1,
+        (1, 0) => 8,
+        (1, 1) => 5,
+        (1, 2) => 2,
+        (2, 0) => 9,
+        (2, 1) => 6,
+        (2, 2) => 3,
+        _ => panic!(),
+    }
+}
+
+fn convert2(x: i32, y: i32) -> char {
+    match (x, y) {
+        (0, 2) => '5',
+        (1, 2) => '6',
+        (2, 2) => '7',
+        (3, 2) => '8',
+        (4, 2) => '9',
+        (1, 1) => 'A',
+        (2, 1) => 'B',
+        (3, 1) => 'C',
+        (2, 0) => 'D',
+        (1, 3) => '2',
+        (2, 3) => '3',
+        (3, 3) => '4',
+        (2, 4) => '1',
+        _ => panic!(),
+    }
+}