Compilare: warning: variable does not need to be mutable --> main.rs:22:9 | 22 | let mut left_1: Vec<usize> = vec![0; n + 1]; | ----^^^^^^ | | | help: remove this `mut` | = note: `#[warn(unused_mut)]` on by default warning: variable does not need to be mutable --> main.rs:23:9 | 23 | let mut left_2: Vec<usize> = vec![0; n + 1]; | ----^^^^^^ | | | help: remove this `mut` warning: 2 warnings emitted