結果
| 問題 | No.269 見栄っ張りの募金活動 |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2022-12-03 17:00:31 |
| 言語 | Rust (1.94.0 + proconio + num + itertools) |
| 結果 |
AC
|
| 実行時間 | 13 ms / 5,000 ms |
| コード長 | 1,104 bytes |
| 記録 | |
| コンパイル時間 | 8,601 ms |
| コンパイル使用メモリ | 191,420 KB |
| 実行使用メモリ | 18,176 KB |
| 最終ジャッジ日時 | 2026-04-26 22:37:14 |
| 合計ジャッジ時間 | 9,781 ms |
|
ジャッジサーバーID (参考情報) |
judge1_1 / judge2_0 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 22 |
コンパイルメッセージ
warning: unnecessary parentheses around `for` iterator expression
--> src/main.rs:34:14
|
34 | for i in (1..=N) {
| ^ ^
|
= note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
help: remove these parentheses
|
34 - for i in (1..=N) {
34 + for i in 1..=N {
|
warning: unnecessary parentheses around `for` iterator expression
--> src/main.rs:35:18
|
35 | for j in (0..=(S as usize)) {
| ^ ^
|
help: remove these parentheses
|
35 - for j in (0..=(S as usize)) {
35 + for j in 0..=(S as usize) {
|
warning: constant `DXY` is never used
--> src/main.rs:15:7
|
15 | const DXY: [(isize, isize); 4] = [(0, 1), (0, -1), (1, 0), (-1, 0)];
| ^^^
|
= note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
warning: constant `FIRST_VALUE` is never used
--> src/main.rs:16:7
|
16 | const FIRST_VALUE: usize = 1_000_000_000;
| ^^^^^^^^^^^
ソースコード
#[allow(unused_imports)]
use itertools::Itertools;
#[allow(unused_imports)]
use proconio::{
input,
marker::{Chars, Isize1, Usize1},
};
#[allow(unused_imports)]
use std::{
cmp::Reverse,
cmp::{max, min},
collections::{BTreeMap, BTreeSet, BinaryHeap, HashMap, VecDeque},
process::exit,
};
const DXY: [(isize, isize); 4] = [(0, 1), (0, -1), (1, 0), (-1, 0)];
const FIRST_VALUE: usize = 1_000_000_000;
const MOD: usize = 1_000_000_007;
#[allow(non_snake_case)]
fn main() {
input! {
N: usize,
mut S: isize,
K: usize,
}
S -= (K * N * (N - 1) / 2) as isize;
if S < 0 {
println!("0");
exit(0);
}
let mut dp = vec![vec![0; S as usize + 1]; N + 1];
// dp[i][j] := jをi分割するときの総数
dp[0][0] = 1;
for i in (1..=N) {
for j in (0..=(S as usize)) {
if j >= i {
dp[i][j] = dp[i - 1][j] + dp[i][j - i];
dp[i][j] %= MOD;
} else {
dp[i][j] = dp[i - 1][j];
}
}
}
println!("{}", dp[N][S as usize]);
}