結果

問題 No.2622 Dam
ユーザー naut3naut3
提出日時 2024-02-09 22:18:55
言語 Rust
(1.83.0 + proconio)
結果
AC  
実行時間 2 ms / 2,000 ms
コード長 2,500 bytes
コンパイル時間 12,246 ms
コンパイル使用メモリ 403,660 KB
実行使用メモリ 6,820 KB
最終ジャッジ日時 2024-09-28 15:34:33
合計ジャッジ時間 11,414 ms
ジャッジサーバーID
(参考情報)
judge2 / judge3
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 1
other AC * 5
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#![allow(non_snake_case, unused_imports, unused_must_use)]
use std::io::{self, prelude::*, BufWriter, StdinLock, StdoutLock};
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::<$T>()).collect::<Vec<_>>()
};
}
let t = input!(usize);
for _ in 0..t {
solve(&mut scan, &mut out);
}
}
fn solve(scan: &mut Scanner<StdinLock>, out: &mut BufWriter<StdoutLock>) {
macro_rules! input {
($T: ty) => {
scan.token::<$T>()
};
($T: ty, $N: expr) => {
(0..$N).map(|_| scan.token::<$T>()).collect::<Vec<_>>()
};
}
let V = input!(i128);
let X = input!(i128);
let F0 = input!(i128);
let Fi = input!(i128);
let Q = input!(i128);
let R = input!(i128);
let mut now = X;
let rep_start = now;
// R
now += (Fi - F0) * R;
if now <= 0 {
writeln!(out, "Zero");
return;
} else if now > V {
writeln!(out, "Overflow");
return;
}
// Q
now -= (Q - R) * F0;
if now <= 0 {
writeln!(out, "Zero");
return;
} else if now > V {
writeln!(out, "Overflow");
return;
}
let diff = now - rep_start;
if diff < 0 {
writeln!(out, "Zero");
} else if diff == 0 {
writeln!(out, "Safe");
} else {
writeln!(out, "Overflow");
}
}
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())
}
}
}
}
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