wow this thing have more than one part

day1/src/main.rs

@@ -6,10 +6,15 @@ fn main() {
     println!("Hi this is the fist day of AOC2022, first we will read the file {}", FILE_PATH);
     let contents = fs::read_to_string(FILE_PATH)
         .expect("Should have been able to read the file");
-    println!("The elf with the biggest calories is: {}", get_max_elf(&contents));
+
+    println!("And we get the elfs from the file!");
+    let mut elfs = get_elfs(&contents);
+    println!("The elf with the biggest calories is carring: {}", get_max_elf(&elfs));
+    println!("The elf with the 3 biggest calories are carring: {}", get_max_3_elf(&mut elfs));
+
 }
 
-fn get_max_elf(input: &str) -> u32{
+fn get_elfs(input: &str) -> Vec<u32> {
     let binding = input.to_owned();
     let input: Vec<&str> = binding.lines().collect();
     let mut elfs = Vec::new();
@@ -19,9 +24,22 @@ fn get_max_elf(input: &str) -> u32{
         if line == "" {ptr+=1; elfs.push(0); continue;}
         elfs[ptr] += u32::from_str(line).expect("all content must be numbers");
     }
+    elfs
+}
+
+fn get_max_elf(elfs: &Vec<u32>) -> u32{
     *elfs.iter().max().expect("there must be a maximum lol")
 }
 
+fn get_max_3_elf(elfs: &mut Vec<u32>) -> u32{
+    let mut out: u32 = 0;
+    elfs.sort();
+    for _ in 0..3 {
+        out += elfs.pop().expect("There must be at least 3 elfs");
+    }
+    out
+}
+
 #[cfg(test)]
 mod test {
     use super::*;
@@ -41,7 +59,26 @@ mod test {
 9000
 
 10000"#;
+        let tst = get_elfs(input);
+        assert_eq!(get_max_elf(&tst), 24000);
+    }
+    #[test]
+    fn it_works2() {
+        let input = r#"1000
+2000
+3000
 
-        assert_eq!(get_max_elf(input), 24000);
+4000
+
+5000
+6000
+
+7000
+8000
+9000
+
+10000"#;
+        let mut tst = get_elfs(input);
+        assert_eq!(get_max_3_elf(&mut tst), 45000);
     }
 }