day2

2024-12-10 00:10:13 +05:30
parent 8ef11b2293
commit 583988cabf
4 changed files with 1117 additions and 56 deletions
@@ -1,63 +1,50 @@
 use std::collections::HashSet;

-pub struct Day1 {
-    pub input: String,
+pub fn one(input: String) {
+    let mut left: Vec<i32> = Vec::new();
+    let mut right: Vec<i32> = Vec::new();
+    input.lines().for_each(|line| {
+        let mut parts = line.split_whitespace();
+        left.push(parts.next().unwrap().parse().unwrap());
+        right.push(parts.next().unwrap().parse().unwrap());
+    });
+
+    left.sort();
+    right.sort();
+
+    let res = left
+        .iter()
+        .zip(right.iter())
+        .map(|(l, r)| abs(*l, *r))
+        .sum::<i32>();
+
+    println!("{}", res);
 }

-impl Day1 {
-    pub fn new() -> Day1 {
-        let input = include_bytes!("input");
-        let input = String::from_utf8_lossy(input);
-        Day1 {
-            input: input.to_string(),
+pub fn two(input: String) {
+    let mut left: HashSet<i32> = HashSet::new();
+    let mut right: Vec<i32> = Vec::new();
+    input.lines().for_each(|line| {
+        let mut parts = line.split_whitespace();
+        left.insert(parts.next().unwrap().parse().unwrap());
+        right.push(parts.next().unwrap().parse().unwrap());
+    });
+
+    let mut acc = 0;
+    for r in right.iter() {
+        if left.contains(r) {
+            acc = acc + *r;
        }
    }

-    pub fn part_one(&self) {
-        let mut left: Vec<i32> = Vec::new();
-        let mut right: Vec<i32> = Vec::new();
-        self.input.lines().for_each(|line| {
-            let mut parts = line.split_whitespace();
-            left.push(parts.next().unwrap().parse().unwrap());
-            right.push(parts.next().unwrap().parse().unwrap());
-        });
+    println!("{}", acc);
+}

-        left.sort();
-        right.sort();
-
-        let res = left
-            .iter()
-            .zip(right.iter())
-            .map(|(l, r)| Day1::abs(*l, *r))
-            .sum::<i32>();
-
-        println!("{}", res);
-    }
-
-    fn abs(a: i32, b: i32) -> i32 {
-        if a > b {
-            a - b
-        } else {
-            b - a
-        }
-    }
-
-    pub fn part_two(&self) {
-        let mut left: HashSet<i32> = HashSet::new();
-        let mut right: Vec<i32> = Vec::new();
-        self.input.lines().for_each(|line| {
-            let mut parts = line.split_whitespace();
-            left.insert(parts.next().unwrap().parse().unwrap());
-            right.push(parts.next().unwrap().parse().unwrap());
-        });
-
-        let mut acc = 0;
-        for r in right.iter() {
-            if left.contains(r) {
-                acc = acc + *r;
-            }
-        }
-
-        println!("{}", acc);
+fn abs(a: i32, b: i32) -> i32 {
+    if a > b {
+        a - b
+    } else {
+        b - a
    }
 }
+