Day 3 Completed.

rust/day3/exemple

@@ -0,0 +1,6 @@
+vJrwpWtwJgWrhcsFMMfFFhFp
+jqHRNqRjqzjGDLGLrsFMfFZSrLrFZsSL
+PmmdzqPrVvPwwTWBwg
+wMqvLMZHhHMvwLHjbvcjnnSBnvTQFn
+ttgJtRGJQctTZtZT
+CrZsJsPPZsGzwwsLwLmpwMDw

rust/day3/src/main.rs

@@ -8,10 +8,10 @@ fn convert(num: u8) -> u8 {
     }
 }
 
-fn main() {
-    let binding = read_to_string("input").unwrap();
-    let file_content: Vec<&str> = binding.split("\r\n").collect();
+fn first_part(str: &String) {
+    let file_content: Vec<&str> = str.split("\r\n").collect();
     let mut ruckstack: Vec<u64> = Vec::new();
+
     for con in &file_content {
         let splitted = con.split_at(con.len() / 2);
         let mut iter = splitted
@@ -23,3 +23,35 @@ fn main() {
     }
     println!("Sum of the priorities : {}", ruckstack.iter().sum::<u64>());
 }
+
+fn second_part(str: &String) {
+    let file_content: Vec<&str> = str.split("\r\n").collect();
+    let mut ruckstack: Vec<u64> = Vec::new();
+    let mut badge: Vec<[&str; 3]> = Vec::new();
+    let mut j : i64 = -1;
+
+    for (i, con) in file_content.iter().enumerate() {
+        if i%3 == 0 {
+            badge.push(["","",""]);
+            j +=1;
+        }
+        badge[j as usize][i%3] = con; 
+    }
+    for strs in &badge {
+        //let badge_second = strs[1].to_owned()+&strs[2].to_owned();
+        let iter : Vec<char> = strs[0]
+            .chars()
+            .into_iter()
+            .filter(|ch| strs[1].find(*ch).is_some())
+            .filter(|ch| strs[2].find(*ch).is_some())
+            .collect();
+        ruckstack.push(convert(iter[0] as u8) as u64);
+    }
+    println!("Sum of the badges : {}", ruckstack.iter().sum::<u64>());
+}
+
+fn main() {
+    let binding = read_to_string("input").unwrap();
+    first_part(&binding);
+    second_part(&binding);
+}