Compilare: warning: unused import: `std::mem` --> main.rs:6:5 | 6 | use std::mem; | ^^^^^^^^ | = note: `#[warn(unused_imports)]` on by default warning: unnecessary parentheses around `if` condition --> main.rs:211:16 | 211 | } else if(val < node.val) { | ^^^^^^^^^^^^^^^^ help: remove these parentheses | = note: `#[warn(unused_parens)]` on by default warning: variable does not need to be mutable --> main.rs:283:9 | 283 | let mut pair = Node::split_treap(self.root.take(), stop); | ----^^^^ | | | help: remove this `mut` | = note: `#[warn(unused_mut)]` on by default warning: variable does not need to be mutable --> main.rs:296:9 | 296 | let mut pair = Node::split_treap(self.root.take(), stop); | ----^^^^ | | | help: remove this `mut` warning: variable does not need to be mutable --> main.rs:297:9 | 297 | let mut pair2 = Node::split_treap(pair.0, start - 1); | ----^^^^^ | | | help: remove this `mut` warning: 5 warnings emitted