From 8ae35afa9f49ea4cf447854e3f55e78c3130d86f Mon Sep 17 00:00:00 2001
From: Samuel Ortion <samuel@ortion.fr>
Date: Sun, 1 Dec 2024 10:40:27 +0100
Subject: [PATCH] day 1: part 2: rust

---
 2024/days/01/part2/Cargo.toml  |  6 ++++++
 2024/days/01/part2/src/main.rs | 36 ++++++++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 2024/days/01/part2/Cargo.toml
 create mode 100644 2024/days/01/part2/src/main.rs

diff --git a/2024/days/01/part2/Cargo.toml b/2024/days/01/part2/Cargo.toml
new file mode 100644
index 0000000..2001cb3
--- /dev/null
+++ b/2024/days/01/part2/Cargo.toml
@@ -0,0 +1,6 @@
+[package]
+name = "part2"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
diff --git a/2024/days/01/part2/src/main.rs b/2024/days/01/part2/src/main.rs
new file mode 100644
index 0000000..f4066f4
--- /dev/null
+++ b/2024/days/01/part2/src/main.rs
@@ -0,0 +1,36 @@
+
+fn similarity(nums1: &Vec<u64>, nums2: &Vec<u64>) -> u64 {
+    let mut s = 0;
+    for num1 in nums1 {
+        let mut count: u64 = 0;
+        for num2 in nums2 {
+            if *num1 == *num2 {
+                count += 1;
+            }
+        }
+        s += num1 * count;
+    }
+    s
+}
+
+
+fn main() -> std::io::Result<()> {
+    let mut nums1: Vec<u64> = Vec::new();
+    let mut nums2: Vec<u64> = Vec::new();
+    for line in std::io::stdin().lines() {
+        let line = line.unwrap();
+        if line == "" {
+            continue;
+        }
+        let mut parts = line.split("   ");
+        let num1 = parts.next().unwrap();
+        let num1: u64 = num1.parse().unwrap();
+        let num2 = parts.next().unwrap();
+        let num2: u64 = num2.parse().unwrap();
+        nums1.push(num1);
+        nums2.push(num2);
+    }
+    let s = similarity(&nums1, &nums2);
+    println!("{}", s);
+    Ok(())
+}