結果
| 問題 |
No.816 Beautiful tuples
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2019-04-19 21:57:12 |
| 言語 | Rust (1.83.0 + proconio) |
| 結果 |
AC
|
| 実行時間 | 1 ms / 1,500 ms |
| コード長 | 4,302 bytes |
| コンパイル時間 | 13,968 ms |
| コンパイル使用メモリ | 380,176 KB |
| 実行使用メモリ | 6,944 KB |
| 最終ジャッジ日時 | 2024-09-22 19:04:20 |
| 合計ジャッジ時間 | 13,465 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 15 |
ソースコード
#[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::{stderr, stdin, stdout, BufWriter, StdoutLock, Write};
#[allow(unused_imports)]
use std::iter::FromIterator;
#[allow(unused_imports)]
use std::{i64, u64, usize};
#[allow(unused_macros)]
macro_rules ! input { ( source = $ s : expr , $ ( $ r : tt ) * ) => { let mut iter = $ s . split_whitespace ( ) ; let mut next = || { iter . next ( ) . unwrap ( ) } ; input_inner ! { next , $ ( $ r ) * } } ; ( $ ( $ r : tt ) * ) => { let stdin = std :: io :: stdin ( ) ; let mut bytes = std :: io :: Read :: bytes ( std :: io :: BufReader :: new ( stdin . lock ( ) ) ) ; let mut next = move || -> String { bytes . by_ref ( ) . map ( | r | r . unwrap ( ) as char ) . skip_while ( | c | c . is_whitespace ( ) ) . take_while ( | c |! c . is_whitespace ( ) ) . collect ( ) } ; input_inner ! { next , $ ( $ r ) * } } ; }
#[allow(unused_macros)]
macro_rules ! input_inner { ( $ next : expr ) => { } ; ( $ next : expr , ) => { } ; ( $ next : expr , $ var : ident : $ t : tt $ ( $ r : tt ) * ) => { let $ var = read_value ! ( $ next , $ t ) ; input_inner ! { $ next $ ( $ r ) * } } ; ( $ next : expr , mut $ var : ident : $ t : tt $ ( $ r : tt ) * ) => { let mut $ var = read_value ! ( $ next , $ t ) ; input_inner ! { $ next $ ( $ r ) * } } ; }
#[allow(unused_macros)]
macro_rules ! read_value { ( $ next : expr , ( $ ( $ t : tt ) ,* ) ) => { ( $ ( read_value ! ( $ next , $ t ) ) ,* ) } ; ( $ next : expr , [ $ t : tt ; $ len : expr ] ) => { ( 0 ..$ len ) . map ( | _ | read_value ! ( $ next , $ t ) ) . collect ::< Vec < _ >> ( ) } ; ( $ next : expr , [ $ t : tt ] ) => { { let len = read_value ! ( $ next , usize ) ; ( 0 .. len ) . map ( | _ | read_value ! ( $ next , $ t ) ) . collect ::< Vec < _ >> ( ) } } ; ( $ next : expr , chars ) => { read_value ! ( $ next , String ) . chars ( ) . collect ::< Vec < char >> ( ) } ; ( $ next : expr , bytes ) => { read_value ! ( $ next , String ) . into_bytes ( ) } ; ( $ next : expr , usize1 ) => { read_value ! ( $ next , usize ) - 1 } ; ( $ next : expr , $ t : ty ) => { $ next ( ) . parse ::<$ t > ( ) . expect ( "Parse error" ) } ; }
#[allow(dead_code)]
struct Writer {
s: String,
}
#[allow(unused_imports)]
use std::fmt::Display;
#[allow(dead_code)]
#[doc = " let mut writer = Writer::new();"]
#[doc = " writer.writeln(hoge);"]
#[doc = " writer.flush()"]
impl Writer {
#[allow(dead_code)]
pub fn new() -> Writer {
Writer { s: String::new() }
}
#[allow(dead_code)]
pub fn flush(&mut self) {
print!("{}", self.s);
self.s.clear();
}
pub fn write<T: Display>(&mut self, x: T) {
self.s.push_str(&format!("{}", x));
}
pub fn writeln<T: Display>(&mut self, x: T) {
self.s.push_str(&format!("{}", x));
self.s.push('\n');
}
#[allow(dead_code)]
pub fn write_vec<T: Display>(&mut self, xs: &Vec<T>) {
if xs.len() == 0 {
self.writeln("");
return;
}
self.write(&format!("{}", xs[0]));
for i in 1..xs.len() {
self.write(&format!(" {}", xs[i]));
}
self.writeln("");
}
}
#[allow(unused_macros)]
macro_rules ! dbg { ( $ ( $ a : expr ) ,* ) => { writeln ! ( & mut stderr ( ) , concat ! ( $ ( stringify ! ( $ a ) , " = {:?}, " ) ,* ) , $ ( $ a ) ,* ) . unwrap ( ) ; } }
#[allow(dead_code)]
const INF_U: u64 = 1_000_000_000_000_000;
#[allow(dead_code)]
const INF_I: i64 = 1_000_000_000_000_000;
#[allow(dead_code)]
pub fn divisor(n: u64) -> Vec<u64> {
let mut div: Vec<u64> = Vec::new();
let mut i = 1;
while i * i <= n {
if n % i == 0 {
div.push(i);
if i * i != n {
div.push(n / i);
}
}
i += 1;
}
div.sort();
div
}
#[allow(non_snake_case)]
#[allow(dead_code)]
fn main() {
input! {
a: u64,
b: u64
}
let div = divisor(a + b);
let mut c = 0;
for d in div {
if a != b && b != d && d != a && (a + d) % b == 0 && (b + d) % a == 0 {
c = d;
}
}
if c == 0 {
println!{"{}", -1};
} else {
println!{"{}", c};
}
}