結果
問題 | No.800 四平方定理 |
ユーザー |
|
提出日時 | 2019-03-17 21:33:17 |
言語 | Rust (1.59.0) |
結果 |
AC
|
実行時間 | 1,222 ms / 2,000 ms |
コード長 | 2,903 bytes |
コンパイル時間 | 1,238 ms |
使用メモリ | 40,748 KB |
最終ジャッジ日時 | 2023-02-11 04:36:58 |
合計ジャッジ時間 | 17,981 ms |
ジャッジサーバーID (参考情報) |
judge14 / judge11 |
テストケース
テストケース表示入力 | 結果 | 実行時間 使用メモリ |
---|---|---|
testcase_00 | AC | 8 ms
4,904 KB |
testcase_01 | AC | 15 ms
6,948 KB |
testcase_02 | AC | 10 ms
6,952 KB |
testcase_03 | AC | 11 ms
4,900 KB |
testcase_04 | AC | 10 ms
4,904 KB |
testcase_05 | AC | 12 ms
4,904 KB |
testcase_06 | AC | 16 ms
4,900 KB |
testcase_07 | AC | 15 ms
6,948 KB |
testcase_08 | AC | 10 ms
6,952 KB |
testcase_09 | AC | 15 ms
4,900 KB |
testcase_10 | AC | 554 ms
20,072 KB |
testcase_11 | AC | 582 ms
22,468 KB |
testcase_12 | AC | 630 ms
21,752 KB |
testcase_13 | AC | 486 ms
20,860 KB |
testcase_14 | AC | 526 ms
23,188 KB |
testcase_15 | AC | 636 ms
22,936 KB |
testcase_16 | AC | 533 ms
23,028 KB |
testcase_17 | AC | 533 ms
25,360 KB |
testcase_18 | AC | 705 ms
22,716 KB |
testcase_19 | AC | 706 ms
22,824 KB |
testcase_20 | AC | 1 ms
4,908 KB |
testcase_21 | AC | 1 ms
4,900 KB |
testcase_22 | AC | 716 ms
23,572 KB |
testcase_23 | AC | 1,222 ms
40,664 KB |
testcase_24 | AC | 991 ms
40,660 KB |
testcase_25 | AC | 1,215 ms
40,564 KB |
testcase_26 | AC | 1 ms
4,904 KB |
testcase_27 | AC | 1 ms
4,904 KB |
testcase_28 | AC | 992 ms
40,564 KB |
testcase_29 | AC | 1,118 ms
40,748 KB |
testcase_30 | AC | 996 ms
40,648 KB |
testcase_31 | AC | 918 ms
38,432 KB |
testcase_32 | AC | 1,027 ms
40,712 KB |
コンパイルメッセージ
warning: unused import: `std::collections::VecDeque` --> Main.rs:72:5 | 72 | use std::collections::VecDeque; | ^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: `#[warn(unused_imports)]` on by default warning: 1 warning emitted
ソースコード
#[allow(unused_macros)] macro_rules! input { (source = $s:expr, $($r:tt)*) => { input_inner!{$s, $($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, string) => { read_value!($next, String).chars().collect::<String>() }; ($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(unused)] use std::io::{Stdin, Bytes, BufReader, StdinLock}; use std::collections::VecDeque; fn lb(vec: &Vec<i32>, v: i32) -> usize { let mut low = -1_isize; let mut high = vec.len() as isize; while high - low > 1 { let mid = (low + high) / 2; if vec[mid as usize] < v { low = mid; } else { high = mid; } } high as usize } fn ub(vec: &Vec<i32>, v: i32) -> usize { let mut low = -1_isize; let mut high = vec.len() as isize; while high - low > 1 { let mid = (low + high) / 2; if vec[mid as usize] <= v { low = mid; } else { high = mid; } } high as usize } fn main() { input! { n: i32, d: i32, }; let mut sum = Vec::new(); let mut sub = Vec::new(); for i in 1..=n { for j in 1..=n { sum.push(i*i+j*j); } } for i in 1..=n { for j in 1..=n { sub.push(i*i-j*j); } } sum.sort(); let mut ans = 0; for i in sub.into_iter() { let l = lb(&sum, i + d); let u = ub(&sum, i + d); ans += u - l; } println!("{}", ans); }