提出 #44150160

---

ソースコード 拡げる

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

fn main() {
    input! {
        s: Chars
    }
    const m: i64 = 998244353;
    let mut dp = vec![vec![0_i64; 3001]; s.len() + 1];
    let mut mj = 0;
    if s[0] == ')' {
        println!("0");
        return;
    }
    dp[0][0] = 1;
    for i in 0..s.len() {
        for j in 0..=mj {
            match s[i] {
                '(' => { dp[i+1][j+1] = dp[i][j]},
                ')' => {
                    if let Some(jj) = j.checked_sub(1) {
                        dp[i+1][jj] = dp[i][j];
                    }
                },
                _ => {
                    dp[i+1][j+1] += (dp[i][j]);
                    dp[i+1][j+1] %= m;
                    if let Some(jj) = j.checked_sub(1) {
                        dp[i+1][jj] += (dp[i][j]);
                        dp[i+1][jj] %=m; 
                    }
                }
            }
        }
        mj+=1;
    }
    println!("{}", dp[s.len()][0]);
}

提出情報

コンパイルエラー

warning: unnecessary parentheses around assigned value
  --> src/main.rs:25:37
   |
25 |                     dp[i+1][j+1] += (dp[i][j]);
   |                                     ^^^^^^^^^^ help: remove these parentheses
   |
   = note: `#[warn(unused_parens)]` on by default

warning: unnecessary parentheses around assigned value
  --> src/main.rs:28:40
   |
28 |                         dp[i+1][jj] += (dp[i][j]);
   |                                        ^^^^^^^^^^ help: remove these parentheses

warning: constant `m` should have an upper case name
 --> src/main.rs:7:11
  |
7 |     const m: i64 = 998244353;
  |           ^ help: convert the identifier to upper case: `M`
  |
  = note: `#[warn(non_upper_case_globals)]` on by default

ジャッジ結果