結果

問題 No.2416 vs Slime
ユーザー haihamabossu
提出日時 2023-08-12 13:40:59
言語 Rust
(1.83.0 + proconio)
結果
AC  
実行時間 1 ms / 2,000 ms
コード長 1,573 bytes
コンパイル時間 12,708 ms
コンパイル使用メモリ 392,484 KB
実行使用メモリ 5,248 KB
最終ジャッジ日時 2024-11-19 15:53:39
合計ジャッジ時間 14,111 ms
ジャッジサーバーID
(参考情報)
judge4 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 1
other AC * 37
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

pub mod scanner {
pub struct Scanner {
buf: Vec<String>,
}
impl Scanner {
pub fn new() -> Self {
Self { buf: vec![] }
}
pub fn new_from(source: &str) -> Self {
let source = String::from(source);
let buf = Self::split(source);
Self { buf }
}
pub fn next<T: std::str::FromStr>(&mut self) -> T {
loop {
if let Some(x) = self.buf.pop() {
return x.parse().ok().expect("");
}
let mut source = String::new();
std::io::stdin().read_line(&mut source).expect("");
self.buf = Self::split(source);
}
}
fn split(source: String) -> Vec<String> {
source
.split_whitespace()
.rev()
.map(String::from)
.collect::<Vec<_>>()
}
}
}
use crate::scanner::Scanner;
use std::io::Write;
fn main() {
let mut scanner = Scanner::new();
let out = std::io::stdout();
let mut out = std::io::BufWriter::new(out.lock());
let t: usize = 1;
for _ in 0..t {
solve(&mut scanner, &mut out);
}
}
fn solve(scanner: &mut Scanner, out: &mut std::io::BufWriter<std::io::StdoutLock>) {
let h: usize = scanner.next();
let a: usize = scanner.next();
let mut ans = 0usize;
let mut now = (h, 1usize);
while now.0 > 0 {
ans += now.1;
now.0 /= a;
now.1 *= 2;
}
writeln!(out, "{}", ans).unwrap();
}
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