結果
問題 | No.1339 循環小数 |
ユーザー |
![]() |
提出日時 | 2021-02-22 01:08:17 |
言語 | Rust (1.83.0 + proconio) |
結果 |
AC
|
実行時間 | 45 ms / 2,000 ms |
コード長 | 4,607 bytes |
コンパイル時間 | 14,429 ms |
コンパイル使用メモリ | 378,852 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-09-19 21:18:03 |
合計ジャッジ時間 | 14,962 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 1 |
other | AC * 36 |
ソースコード
#![allow(unused_imports)]#![allow(non_snake_case, unused)]use std::cmp::*;use std::collections::*;use std::ops::*;// https://atcoder.jp/contests/hokudai-hitachi2019-1/submissions/10518254 よりmacro_rules! eprint {($($t:tt)*) => {{use ::std::io::Write;let _ = write!(::std::io::stderr(), $($t)*);}};}macro_rules! eprintln {() => { eprintln!(""); };($($t:tt)*) => {{use ::std::io::Write;let _ = writeln!(::std::io::stderr(), $($t)*);}};}macro_rules! dbg {($v:expr) => {{let val = $v;eprintln!("[{}:{}] {} = {:?}", file!(), line!(), stringify!($v), val);val}}}macro_rules! mat {($($e:expr),*) => { Vec::from(vec![$($e),*]) };($($e:expr,)*) => { Vec::from(vec![$($e),*]) };($e:expr; $d:expr) => { Vec::from(vec![$e; $d]) };($e:expr; $d:expr $(; $ds:expr)+) => { Vec::from(vec![mat![$e $(; $ds)*]; $d]) };}macro_rules! ok {($a:ident$([$i:expr])*.$f:ident()$(@$t:ident)*) => {$a$([$i])*.$f($($t),*)};($a:ident$([$i:expr])*.$f:ident($e:expr$(,$es:expr)*)$(@$t:ident)*) => { {let t = $e;ok!($a$([$i])*.$f($($es),*)$(@$t)*@t)} };}pub fn readln() -> String {let mut line = String::new();::std::io::stdin().read_line(&mut line).unwrap_or_else(|e| panic!("{}", e));line}macro_rules! read {($($t:tt),*; $n:expr) => {{let stdin = ::std::io::stdin();let ret = ::std::io::BufRead::lines(stdin.lock()).take($n).map(|line| {let line = line.unwrap();let mut it = line.split_whitespace();_read!(it; $($t),*)}).collect::<Vec<_>>();ret}};($($t:tt),*) => {{let line = readln();let mut it = line.split_whitespace();_read!(it; $($t),*)}};}macro_rules! _read {($it:ident; [char]) => {_read!($it; String).chars().collect::<Vec<_>>()};($it:ident; [u8]) => {Vec::from(_read!($it; String).into_bytes())};($it:ident; usize1) => {$it.next().unwrap_or_else(|| panic!("input mismatch")).parse::<usize>().unwrap_or_else(|e| panic!("{}", e)) - 1};($it:ident; [usize1]) => {$it.map(|s| s.parse::<usize>().unwrap_or_else(|e| panic!("{}", e)) - 1).collect::<Vec<_>>()};($it:ident; [$t:ty]) => {$it.map(|s| s.parse::<$t>().unwrap_or_else(|e| panic!("{}", e))).collect::<Vec<_>>()};($it:ident; $t:ty) => {$it.next().unwrap_or_else(|| panic!("input mismatch")).parse::<$t>().unwrap_or_else(|e| panic!("{}", e))};($it:ident; $($t:tt),+) => {($(_read!($it; $t)),*)};}pub fn main() {let _ = ::std::thread::Builder::new().name("run".to_string()).stack_size(32 * 1024 * 1024).spawn(run).unwrap().join();}const MOD: usize = 998244353;// const MOD: usize = 1_000_000_007;// const INF: i64 = std::i64::MAX;const INF: usize = std::usize::MAX;// const INF: i128 = std::i128::MAX/100;fn solve() {let t = read!(usize);for i in 0..t {let n = read!(i64);let mut t = n;while t%2==0 {t /= 2;}while t%5==0 {t /= 5;}if t==1 {println!("1");continue;}let mut x = t;let mut f = vec![];for j in 2..=t {if j*j>t {break;}if x%j!=0 {continue;}f.push(j);while x%j==0 {x /= j;}}if x!=1 {f.push(x);}let mut phi = t;for &f in &f {phi = phi*(f-1)/f;}let mut div = vec![];for j in 1..=phi {if j*j>phi {break;}if phi%j!=0 {continue;}div.push(j);if j*j!=phi{div.push(phi/j);}}div.sort();let mut ans = phi;for &d in &div {let mut val = 1;let mut b = 10;for j in 0..60 {if (d>>j)%2==1 {val *= b;val %= t;}b = (b*b) % t;}if val==1 {ans = min(ans, d);}}println!("{}",ans);}}fn run() {let stack_size = 104_857_600; // 100 MBlet thd = std::thread::Builder::new().stack_size(stack_size);solve();}