Compilare: warning: unused import: `Write` --> main.rs:2:26 | 2 | use std::io::{BufReader, Write}; | ^^^^^ | = note: `#[warn(unused_imports)]` on by default warning: unused variable: `output` --> main.rs:10:9 | 10 | let mut output = File::create("turnuri4.out")?; | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_output` | = note: `#[warn(unused_variables)]` on by default warning: unused variable: `stack_1` --> main.rs:18:9 | 18 | let mut stack_1: Vec<usize> = Vec::new(); | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack_1` warning: unused variable: `stack_2` --> main.rs:19:9 | 19 | let mut stack_2: Vec<usize> = Vec::new(); | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack_2` warning: unused variable: `aux` --> main.rs:20:9 | 20 | let mut aux: Vec<usize> = Vec::new(); | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_aux` warning: unused variable: `left_1` --> main.rs:22:9 | 22 | let mut left_1: Vec<usize> = vec![0; n + 1]; | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_1` warning: unused variable: `left_2` --> main.rs:23:9 | 23 | let mut left_2: Vec<usize> = vec![0; n + 1]; | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_2` warning: unused variable: `right_1` --> main.rs:24:9 | 24 | let mut right_1: Vec<usize> = vec![n + 1; n + 1];