結果

問題 No.889 素数!
ユーザー akiradeveloperakiradeveloper
提出日時 2019-09-20 21:49:59
言語 Rust
(1.83.0 + proconio)
結果
AC  
実行時間 2 ms / 2,000 ms
コード長 5,262 bytes
コンパイル時間 16,306 ms
コンパイル使用メモリ 399,912 KB
実行使用メモリ 6,948 KB
最終ジャッジ日時 2024-09-14 17:14:16
合計ジャッジ時間 16,020 ms
ジャッジサーバーID
(参考情報)
judge6 / judge5
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 * 3
other AC * 61
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

#[doc = " https://github.com/hatoo/competitive-rust-snippets"]
#[allow(unused_imports)]
use std::cmp::{max, min, Ordering};
#[allow(unused_imports)]
use std::collections::{BTreeMap, BTreeSet, BinaryHeap, HashMap, HashSet, VecDeque};
#[allow(unused_imports)]
use std::io::{stdin, stdout, BufWriter, Write};
#[allow(unused_imports)]
use std::iter::FromIterator;
#[allow(unused_macros)]
macro_rules ! debug { ( $ ( $ a : expr ) ,* ) => { eprintln ! ( concat ! ( $ ( stringify ! ( $ a ) , " = {:?}, " ) ,* ) , $ ( $ a ) ,* ) ; } }
#[macro_export]
macro_rules ! input { ( source = $ s : expr , $ ( $ r : tt ) * ) => { let mut parser = Parser :: from_str ( $ s ) ; input_inner ! { parser , $ ( $ r
    ) * } } ; ( parser = $ parser : ident , $ ( $ r : tt ) * ) => { input_inner ! { $ parser , $ ( $ r ) * } } ; ( new_stdin_parser = $ parser :
    ident , $ ( $ r : tt ) * ) => { let stdin = std :: io :: stdin ( ) ; let reader = std :: io :: BufReader :: new ( stdin . lock ( ) ) ; let mut $
    parser = Parser :: new ( reader ) ; input_inner ! { $ parser , $ ( $ r ) * } } ; ( $ ( $ r : tt ) * ) => { input ! { new_stdin_parser = parser ,
    $ ( $ r ) * } } ; }
#[macro_export]
macro_rules ! input_inner { ( $ parser : ident ) => { } ; ( $ parser : ident , ) => { } ; ( $ parser : ident , $ var : ident : $ t : tt $ ( $ r : tt
    ) * ) => { let $ var = read_value ! ( $ parser , $ t ) ; input_inner ! { $ parser $ ( $ r ) * } } ; }
#[macro_export]
macro_rules ! read_value { ( $ parser : ident , ( $ ( $ t : tt ) ,* ) ) => { ( $ ( read_value ! ( $ parser , $ t ) ) ,* ) } ; ( $ parser : ident , [
    $ t : tt ; $ len : expr ] ) => { ( 0 ..$ len ) . map ( | _ | read_value ! ( $ parser , $ t ) ) . collect ::< Vec < _ >> ( ) } ; ( $ parser :
    ident , chars ) => { read_value ! ( $ parser , String ) . chars ( ) . collect ::< Vec < char >> ( ) } ; ( $ parser : ident , usize1 ) => {
    read_value ! ( $ parser , usize ) - 1 } ; ( $ parser : ident , $ t : ty ) => { $ parser . next ::<$ t > ( ) . expect ( "Parse error" ) } ; }
use std::io;
use std::io::BufRead;
use std::str;
pub struct Parser<R> {
reader: R,
buf: Vec<u8>,
pos: usize,
}
impl Parser<io::Empty> {
pub fn from_str(s: &str) -> Parser<io::Empty> {
Parser {
reader: io::empty(),
buf: s.as_bytes().to_vec(),
pos: 0,
}
}
}
impl<R: BufRead> Parser<R> {
pub fn new(reader: R) -> Parser<R> {
Parser {
reader: reader,
buf: vec![],
pos: 0,
}
}
pub fn update_buf(&mut self) {
self.buf.clear();
self.pos = 0;
loop {
let (len, complete) = {
let buf2 = self.reader.fill_buf().unwrap();
self.buf.extend_from_slice(buf2);
let len = buf2.len();
if len == 0 {
break;
}
(len, buf2[len - 1] <= 0x20)
};
self.reader.consume(len);
if complete {
break;
}
}
}
pub fn next<T: str::FromStr>(&mut self) -> Result<T, T::Err> {
loop {
let mut begin = self.pos;
while begin < self.buf.len() && (self.buf[begin] <= 0x20) {
begin += 1;
}
let mut end = begin;
while end < self.buf.len() && (self.buf[end] > 0x20) {
end += 1;
}
if begin != self.buf.len() {
self.pos = end;
return str::from_utf8(&self.buf[begin..end]).unwrap().parse::<T>();
} else {
self.update_buf();
}
}
}
}
#[allow(unused_macros)]
macro_rules ! debug { ( $ ( $ a : expr ) ,* ) => { eprintln ! ( concat ! ( $ ( stringify ! ( $ a ) , " = {:?}, " ) ,* ) , $ ( $ a ) ,* ) ; } }
#[doc = " https://github.com/hatoo/competitive-rust-snippets"]
const BIG_STACK_SIZE: bool = true;
#[allow(dead_code)]
fn main() {
use std::thread;
if BIG_STACK_SIZE {
thread::Builder::new()
.stack_size(32 * 1024 * 1024)
.name("solve".into())
.spawn(solve)
.unwrap()
.join()
.unwrap();
} else {
solve();
}
}
fn solve() {
input!{
n:usize
}
if n>=2 && is_prime(n) {
println!("Sosu!");
return
}
for k in 0..64 {
if n>=2 && k*k == n {
println!("Heihosu!");
return
}
if n>=2 && k*k*k == n {
println!("Ripposu!");
return
}
}
let mut sum = 0;
for x in divisors(n) {
sum+=x
}
sum-=n;
if n>=1 && n == sum {
println!("Kanzensu!");
return;
}
println!("{}",n);
}
fn is_prime(n: usize) -> bool {
let mut d = 1;
while d * d <= n {
d += 1;
}
let mut res = true;
for i in 2..d {
if n % i == 0 {
res = false;
break;
}
}
res
}
fn divisors(n: usize) -> Vec<usize> {
let mut res = vec![];
let mut d = 1;
while d * d <= n {
if n % d == 0 {
res.push(d);
if d * d != n {
res.push(n / d);
}
}
d += 1;
}
res
}
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