Compilare: warning: unused import: `core::net` --> main.rs:1:5 | 1 | use core::net; | ^^^^^^^^^ | = note: `#[warn(unused_imports)]` on by default warning: unused imports: `HashMap`, `Read`, `max`, `self` --> main.rs:2:17 | 2 | use std::{cmp::{max, min}, collections::{HashMap, VecDeque}, fs::{self, File, OpenOptions}, io::{BufRead, BufReader, BufWriter, Read, Wri... | ^^^ ^^^^^^^ ^^^^ ^^^^ warning: variable `w` is assigned to, but never used --> main.rs:88:32 | 88 | let mut u; let mut w; let mut dir; | ^ | = note: consider using `_w` instead = note: `#[warn(unused_variables)]` on by default warning: value assigned to `w` is never read --> main.rs:89:17 | 89 | (u, w, dir) = (edge.0, edge.1, edge.2); | ^ | = help: maybe it is overwritten before being read? = note: `#[warn(unused_assignments)]` on by default warning: value assigned to `w` is never read --> main.rs:108:21 | 108 | (u, w, dir) = (edge.0, edge.1, edge.2); | ^ | = help: maybe it is overwritten before being read? warning: unused variable: `end` --> main.rs:96:37 | 96 | .for_each(|(end, f, c)| *f += flux_update); | ^^^ help: if this is intentional, prefix it with an underscore: `_end` warning: unused variable: `c` --> main.rs:96:45 | 96 | .for_each(|(end, f, c)| *f += flux_update);