Compilare: warning: unused import: `std::fs` --> main.rs:1:5 | 1 | use std::fs; | ^^^^^^^ | = note: `#[warn(unused_imports)]` on by default warning: unused import: `Read` --> main.rs:3:53 | 3 | use std::io::{BufRead, BufReader, BufWriter, Write, Read}; | ^^^^ warning: unused import: `std::cmp` --> main.rs:4:5 | 4 | use std::cmp; | ^^^^^^^^ warning: unused variable: `i` --> main.rs:34:9 | 34 | for i in 0..m{ | ^ help: if this is intentional, prefix it with an underscore: `_i` | = note: `#[warn(unused_variables)]` on by default warning: constant is never used: `INF` --> main.rs:7:1 | 7 | const INF:i32 = MAX; | ^^^^^^^^^^^^^^^^^^^^ | = note: `#[warn(dead_code)]` on by default warning: variable `FIN` should have a snake case name --> main.rs:22:13 | 22 | let mut FIN = BufReader::new(File::open("sortaret.in").unwrap()); | ^^^ help: convert the identifier to snake case: `fin` | = note: `#[warn(non_snake_case)]` on by default warning: variable `FOUT` should have a snake case name --> main.rs:23:13 | 23 | let mut FOUT = BufWriter::new(File::create("sortaret.out").unwrap()); | ^^^^ help: convert the identifier to snake case: `fout`