Compilare: warning: unused import: `std::io::Write` --> main.rs:3:5 | 3 | use std::io::Write; | ^^^^^^^^^^^^^^ | = note: `#[warn(unused_imports)]` on by default warning: unused variable: `out` --> main.rs:48:13 | 48 | let mut out = File::create("permlcs.out").expect("Unable to create file"); | ^^^ help: if this is intentional, prefix it with an underscore: `_out` | = note: `#[warn(unused_variables)]` on by default warning: unused variable: `count` --> main.rs:63:13 | 63 | let mut count: Vec<Vec<u8>> = vec![vec![0; n + 1]; n + 1]; | ^^^^^ help: if this is intentional, prefix it with an underscore: `_count` warning: unused variable: `t` --> main.rs:76:9 | 76 | for t in 0..m { | ^ help: if this is intentional, prefix it with an underscore: `_t` warning: unused variable: `perm` --> main.rs:79:13 | 79 | let perm: Vec<u16> = line | ^^^^ help: if this is intentional, prefix it with an underscore: `_perm` warning: variable does not need to be mutable --> main.rs:48:9 | 48 | let mut out = File::create("permlcs.out").expect("Unable to create file"); | ----^^^ | | | help: remove this `mut` | = note: `#[warn(unused_mut)]` on by default warning: variable does not need to be mutable --> main.rs:63:9 | 63 | let mut count: Vec<Vec<u8>> = vec![vec![0; n + 1]; n + 1]; | ----^^^^^ | |