Submission #60334363

---

Source Code Expand

use proconio::{input, marker::Chars};

pub fn main() {
    input! {
        n: usize,
        m: usize
    };
    let mut ans = solve(0, n, vec![], m);
    println!("{}", ans.len());
    ans.iter().for_each(|v| {
        println!(
            "{}",
            v.iter()
                .map(|x| x.to_string())
                .collect::<Vec<String>>()
                .join(" ")
        )
    });
}

fn solve(n: usize, goal_n: usize, v: Vec<usize>, m: usize) -> Vec<Vec<usize>> {
    if n == goal_n {
        return vec![v];
    }
    let mut ans = vec![];
    for i in (if n == 0 { 1 } else { v[n - 1] + 10 })..=m - 10 * (goal_n - 1 - n) {
        let mut vv = v.clone();
        vv.push(i);
        ans.extend(solve(n + 1, goal_n, vv, m));
    }
    return ans;
}

Submission Info

Compile Error

warning: unused import: `marker::Chars`
 --> src/main.rs:1:23
  |
1 | use proconio::{input, marker::Chars};
  |                       ^^^^^^^^^^^^^
  |
  = note: `#[warn(unused_imports)]` on by default

warning: variable does not need to be mutable
 --> src/main.rs:8:9
  |
8 |     let mut ans = solve(0, n, vec![], m);
  |         ----^^^
  |         |
  |         help: remove this `mut`
  |
  = note: `#[warn(unused_mut)]` on by default

Judge Result