diff --git a/rust/day7/src/main.rs b/rust/day7/src/main.rs
index 7982e71..0b647a5 100644
--- a/rust/day7/src/main.rs
+++ b/rust/day7/src/main.rs
@@ -1,5 +1,7 @@
+use std::cmp;
 use std::fs::read_to_string;
 mod system;
+use system::Directory;
 use system::Disk;
 
 fn decode(cmd: Vec<&str>) -> Disk {
@@ -30,7 +32,7 @@ fn decode(cmd: Vec<&str>) -> Disk {
     disk
 }
 
-fn list_dirs(disk: &Disk, max: u64) -> u64 {
+fn first_part(disk: &Disk, max: u64) -> u64 {
     let mut sum = 0;
     for iter in disk
         .get_directories()
@@ -47,9 +49,30 @@ fn list_dirs(disk: &Disk, max: u64) -> u64 {
     sum
 }
 
+fn second_part(disk: &Disk, disk_space: u64, update_space: u64) {
+    let directories = disk.get_directories();
+    let needed_space = update_space - (disk_space - disk.get_size(directories[0]));
+    println!("Needed space: {}", needed_space);
+    let big_directories: Vec<&&Directory> = directories
+        .iter()
+        .filter(|dir| disk.get_size(dir) >= needed_space)
+        .collect();
+    let (_, dir) = big_directories
+        .iter()
+        .enumerate()
+        .min_by(|(_, a), (_, b)| disk.get_size(a).cmp(&disk.get_size(b)))
+        .unwrap();
+    println!(
+        "Directory to delete : {},\twith size: {}",
+        disk.get_path(dir),
+        disk.get_size(dir)
+    );
+}
+
 fn main() {
     let file_content = read_to_string("input").unwrap();
     let final_disk = decode(file_content.split("\n").collect());
     final_disk.print();
-    println!("Total sum: {}", list_dirs(&final_disk, 100000));
+    println!("Total sum: {}", first_part(&final_disk, 100000));
+    second_part(&final_disk, 70000000, 30000000);
 }