結果
| 問題 |
No.2451 Redistribute Integers
|
| コンテスト | |
| ユーザー |
naut3
|
| 提出日時 | 2023-09-01 21:37:39 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
AC
|
| 実行時間 | 34 ms / 2,000 ms |
| コード長 | 1,854 bytes |
| コンパイル時間 | 15,048 ms |
| コンパイル使用メモリ | 379,460 KB |
| 実行使用メモリ | 11,520 KB |
| 最終ジャッジ日時 | 2024-06-11 11:01:15 |
| 合計ジャッジ時間 | 13,043 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 19 |
コンパイルメッセージ
warning: unused variable: `isok` --> src/main.rs:28:13 | 28 | let mut isok = true; | ^^^^ help: if this is intentional, prefix it with an underscore: `_isok` | = note: `#[warn(unused_variables)]` on by default warning: variable does not need to be mutable --> src/main.rs:28:9 | 28 | let mut isok = true; | ----^^^^ | | | help: remove this `mut` | = note: `#[warn(unused_mut)]` on by default
ソースコード
#![allow(non_snake_case, unused_imports, unused_must_use)]
use std::io::{self, prelude::*};
use std::str;
fn main() {
let (stdin, stdout) = (io::stdin(), io::stdout());
let mut scan = Scanner::new(stdin.lock());
let mut out = io::BufWriter::new(stdout.lock());
macro_rules! input {
($T: ty) => {
scan.token::<$T>()
};
($T: ty, $N: expr) => {
(0..$N).map(|_| scan.token::<$T>()).collect::<Vec<_>>()
};
}
let N = input!(usize);
let A = input!(isize, N);
let S = A.iter().sum::<isize>();
if S % N as isize != 0 {
writeln!(out, "No");
return;
}
let mut isok = true;
let mut r = A[0] % N as isize;
if r < 0 {
r += N as isize;
}
for a in A {
let mut r_ = a % N as isize;
if r_ < 0 {
r_ += N as isize;
}
if r_ != r {
writeln!(out, "No");
return;
}
}
writeln!(out, "Yes");
return;
}
struct Scanner<R> {
reader: R,
buf_str: Vec<u8>,
buf_iter: str::SplitWhitespace<'static>,
}
impl<R: BufRead> Scanner<R> {
fn new(reader: R) -> Self {
Self {
reader,
buf_str: vec![],
buf_iter: "".split_whitespace(),
}
}
fn token<T: str::FromStr>(&mut self) -> T {
loop {
if let Some(token) = self.buf_iter.next() {
return token.parse().ok().expect("Failed parse");
}
self.buf_str.clear();
self.reader
.read_until(b'\n', &mut self.buf_str)
.expect("Failed read");
self.buf_iter = unsafe {
let slice = str::from_utf8_unchecked(&self.buf_str);
std::mem::transmute(slice.split_whitespace())
}
}
}
}
naut3