結果
問題 | No.480 合計 |
ユーザー | shamio |
提出日時 | 2023-07-13 16:05:42 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 1 ms / 2,000 ms |
コード長 | 3,748 bytes |
コンパイル時間 | 16,278 ms |
コンパイル使用メモリ | 392,548 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-09-15 02:32:07 |
合計ジャッジ時間 | 17,339 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge6 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
6,816 KB |
testcase_01 | AC | 1 ms
6,812 KB |
testcase_02 | AC | 1 ms
6,940 KB |
testcase_03 | AC | 1 ms
6,940 KB |
testcase_04 | AC | 1 ms
6,940 KB |
testcase_05 | AC | 1 ms
6,940 KB |
testcase_06 | AC | 1 ms
6,940 KB |
testcase_07 | AC | 1 ms
6,940 KB |
testcase_08 | AC | 1 ms
6,940 KB |
testcase_09 | AC | 1 ms
6,940 KB |
testcase_10 | AC | 1 ms
6,940 KB |
testcase_11 | AC | 1 ms
6,940 KB |
testcase_12 | AC | 1 ms
6,940 KB |
testcase_13 | AC | 1 ms
6,944 KB |
testcase_14 | AC | 1 ms
6,940 KB |
testcase_15 | AC | 1 ms
6,944 KB |
testcase_16 | AC | 1 ms
6,940 KB |
testcase_17 | AC | 1 ms
6,940 KB |
testcase_18 | AC | 1 ms
6,940 KB |
testcase_19 | AC | 1 ms
6,944 KB |
testcase_20 | AC | 1 ms
6,944 KB |
testcase_21 | AC | 1 ms
6,940 KB |
コンパイルメッセージ
warning: unnecessary parentheses around method argument --> src/main.rs:122:35 | 122 | let j = i + self.next((a.len() - i)) as usize; | ^ ^ | = note: `#[warn(unused_parens)]` on by default help: remove these parentheses | 122 - let j = i + self.next((a.len() - i)) as usize; 122 + let j = i + self.next(a.len() - i) as usize; | warning: constant `SEED` is never used --> src/main.rs:130:7 | 130 | const SEED: u32 = 890482; | ^^^^ | = note: `#[warn(dead_code)]` on by default warning: constant `TIME_LIMIT` is never used --> src/main.rs:131:7 | 131 | const TIME_LIMIT: f64 = 0.98; | ^^^^^^^^^^
ソースコード
#[allow(unused_macros)] macro_rules! debug { ($($a:expr),*) => { #[cfg(feature = "single_testcase")] { eprint!("[line:{}] ", line!()); eprintln!(concat!($(stringify!($a), " = {:?}, "),*), $($a),*); } } } fn get_time() -> f64 { static mut STIME: f64 = -1.0; let t = std::time::SystemTime::now() .duration_since(std::time::UNIX_EPOCH) .unwrap(); let ms = t.as_secs() as f64 + t.subsec_nanos() as f64 * 1e-9; unsafe { if STIME < 0.0 { STIME = ms; } ms - STIME } } //-------------------------------------------------------------------------------- // https://atcoder.jp/contests/intro-heuristics/submissions/14832097 // let D = read!(usize); // let c = read!([i64]); // let s = read!([i64]; D); #[allow(dead_code)] fn readln() -> String { let mut line = String::new(); ::std::io::stdin() .read_line(&mut line) .unwrap_or_else(|e| panic!("{}", e)); line } #[allow(unused_macros)] 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)),*) }; } //-------------------------------------------------------------------------------- // https://atcoder.jp/contests/hokudai-hitachi2017-1/submissions/1797182 // u32 -> usize pub struct XorShift { pub x: [usize; 4], } impl XorShift { pub fn new(mut seed: usize) -> XorShift { let mut x = [0; 4]; for i in 0..4 { seed = 1812433253usize .wrapping_mul(seed ^ (seed >> 30)) .wrapping_add(i as usize); x[i] = seed; } XorShift { x: x } } pub fn next_usize(&mut self) -> usize { let t = self.x[0] ^ (self.x[0] << 11); for i in 0..3 { self.x[i] = self.x[i + 1] } self.x[3] = self.x[3] ^ (self.x[3] >> 19) ^ t ^ (t >> 8); self.x[3] } /// [0, n) pub fn next(&mut self, n: usize) -> usize { loop { let t = self.next_usize(); let r = t % n; if (t - r).checked_add(n).is_some() { return r; } } } pub fn shuffle<T>(&mut self, a: &mut [T]) { for i in 0..a.len() { let j = i + self.next((a.len() - i)) as usize; a.swap(i, j); } } } //-------------------------------------------------------------------------------- const SEED: u32 = 890482; const TIME_LIMIT: f64 = 0.98; fn main() { get_time(); let n = read!(i32); let mut sm = 0; for i in 1..=n { sm += i; } println!("{}", sm); eprintln!("time_elapsed: {:.3}", get_time()); }