There is absolutely  no reason to require a dummy structure `struct Solution` for each leetcode problem. Rust has first class functions and the expected signature should be:\n\n```rust\nfn leet_code_task(a: i32, b: i32) -> i32{}\n```\n\ninstead of \n```\nimpl Solution{\n    fn leet_code_task(a: i32, b: i32) -> i32{}\n}\n```\n\nPersonally I write the code in CLion and it\'s very annoying to have that additional nesting and to have to artificially create a dummy structure just to be able to compile my code.

There is absolutely  no reason to require a dummy structure struct Solution for each leetcode problem. Rust has first class functions and the expected signature