結果
問題 | No.2451 Redistribute Integers |
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()) } } } }