Compilare: warning: unused variable: `H` --> main.rs:110:10 | 110 | let (H, total_num_bits) = create_huffman_tree(new_nodes_iterator, N); | ^ help: if this is intentional, prefix it with an underscore: `_H` | = note: `#[warn(unused_variables)]` on by default warning: fields `val` and `num_bits` are never read --> main.rs:22:5 | 21 | struct Encoding { | -------- fields in this struct 22 | val: u64, | ^^^ 23 | num_bits: u8, | ^^^^^^^^ | = note: `Encoding` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis = note: `#[warn(dead_code)]` on by default warning: associated items `create_encoding_impl` and `create_encoding` are never used --> main.rs:34:8 | 26 | impl HuffmanNode { | ---------------- associated items in this implementation ... 34 | fn create_encoding_impl(node: &Self, existing_encodings: &mut Vec<Encoding>, current_encoding: Encoding) { | ^^^^^^^^^^^^^^^^^^^^ ... 55 | fn create_encoding(&self, N: usize) -> Vec<Encoding> { | ^^^^^^^^^^^^^^^ warning: 3 warnings emitted