Right answer !

src/main.rs

@@ -16,6 +16,6 @@ fn main() {
     {
         let file_path = "prob3_part1.txt";
         let max_part1 = prob3::solve_part1(file_path);
-        println!("{max_part1}");
+        println!("Solution for problem 3 part 1: {max_part1}");
     }
 }

src/prob3/mod.rs

@@ -3,7 +3,7 @@ use std::collections::HashSet;
 pub fn solve_part1(file_path: &str) -> i32 {
     let binding =
         std::fs::read_to_string(file_path).expect("Please provide a text file as an argument.");
-    let content = binding
+    binding
         .lines()
         .collect::<Vec<&str>>()
         .iter()
@@ -11,9 +11,14 @@ pub fn solve_part1(file_path: &str) -> i32 {
             let (first, last) = item.split_at(item.len() / 2);
             let second = last.chars().collect::<HashSet<char>>();
             let intersection = first.chars().collect::<HashSet<char>>();
-            *intersection.intersection(&second).next().unwrap()
+            let character = *intersection.intersection(&second).next().unwrap() as i32;
+            if character >= ('a' as i32) {
+                character - 96
+            } else {
+                character - 38
+            }
         })
-        .collect::<Vec<char>>();
-
-    0
+        .collect::<Vec<i32>>()
+        .iter()
+        .sum::<i32>()
 }