結果
問題 | No.1209 XOR Into You |
ユーザー | ikd |
提出日時 | 2020-09-02 22:41:50 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 150 ms / 2,000 ms |
コード長 | 4,472 bytes |
コンパイル時間 | 14,926 ms |
コンパイル使用メモリ | 378,532 KB |
実行使用メモリ | 15,232 KB |
最終ジャッジ日時 | 2024-05-01 18:06:48 |
合計ジャッジ時間 | 19,984 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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
5,248 KB |
testcase_01 | AC | 1 ms
5,248 KB |
testcase_02 | AC | 1 ms
5,376 KB |
testcase_03 | AC | 1 ms
5,376 KB |
testcase_04 | AC | 53 ms
5,376 KB |
testcase_05 | AC | 52 ms
5,376 KB |
testcase_06 | AC | 70 ms
6,864 KB |
testcase_07 | AC | 129 ms
12,856 KB |
testcase_08 | AC | 117 ms
11,872 KB |
testcase_09 | AC | 117 ms
11,772 KB |
testcase_10 | AC | 93 ms
10,096 KB |
testcase_11 | AC | 114 ms
11,732 KB |
testcase_12 | AC | 109 ms
11,008 KB |
testcase_13 | AC | 120 ms
12,404 KB |
testcase_14 | AC | 100 ms
10,812 KB |
testcase_15 | AC | 106 ms
11,360 KB |
testcase_16 | AC | 106 ms
11,044 KB |
testcase_17 | AC | 100 ms
10,752 KB |
testcase_18 | AC | 150 ms
14,620 KB |
testcase_19 | AC | 106 ms
11,168 KB |
testcase_20 | AC | 122 ms
12,444 KB |
testcase_21 | AC | 89 ms
9,856 KB |
testcase_22 | AC | 85 ms
15,232 KB |
testcase_23 | AC | 84 ms
15,204 KB |
testcase_24 | AC | 87 ms
15,232 KB |
testcase_25 | AC | 140 ms
15,188 KB |
testcase_26 | AC | 143 ms
15,016 KB |
testcase_27 | AC | 144 ms
15,180 KB |
testcase_28 | AC | 143 ms
15,180 KB |
testcase_29 | AC | 138 ms
15,180 KB |
testcase_30 | AC | 144 ms
15,180 KB |
testcase_31 | AC | 98 ms
8,532 KB |
testcase_32 | AC | 96 ms
8,524 KB |
testcase_33 | AC | 96 ms
8,656 KB |
testcase_34 | AC | 99 ms
8,532 KB |
testcase_35 | AC | 95 ms
8,528 KB |
testcase_36 | AC | 97 ms
8,652 KB |
testcase_37 | AC | 66 ms
8,704 KB |
testcase_38 | AC | 114 ms
12,844 KB |
testcase_39 | AC | 98 ms
11,840 KB |
testcase_40 | AC | 85 ms
15,232 KB |
ソースコード
pub struct ProconReader<R: std::io::Read> { reader: R, } impl<R: std::io::Read> ProconReader<R> { pub fn new(reader: R) -> Self { Self { reader } } pub fn get<T: std::str::FromStr>(&mut self) -> T { use std::io::Read; let buf = self .reader .by_ref() .bytes() .map(|b| b.unwrap()) .skip_while(|&byte| byte == b' ' || byte == b'\n' || byte == b'\r') .take_while(|&byte| byte != b' ' && byte != b'\n' && byte != b'\r') .collect::<Vec<_>>(); std::str::from_utf8(&buf) .unwrap() .parse() .ok() .expect("Parse Error.") } } pub struct FenwickTree { n: usize, dat: Vec<i64>, } impl FenwickTree { pub fn new(n: usize) -> Self { let n = n.next_power_of_two(); Self { n, dat: vec![0; n + 1], } } pub fn add(&mut self, k: usize, x: i64) { assert!(1 <= k && k <= self.n); let n = self.n as i32; let mut k = k as i32; while k <= n { self.dat[k as usize] += x; k += k & (-k); } } pub fn _sum(&self, r: usize) -> i64 { assert!(r <= self.n); let mut result = 0; let mut k = r as i32; while k >= 1 { result += self.dat[k as usize]; k -= k & (-k); } result } pub fn sum(&self, l: usize, r: usize) -> i64 { if l > r { return 0; } assert!(1 <= l && l <= self.n); assert!(1 <= r && r <= self.n); self._sum(r) - self._sum(l - 1) } } mod binary_search { use std::ops::Range; pub trait BinarySearch<T> { fn lower_bound(&self, x: &T) -> usize; fn upper_bound(&self, x: &T) -> usize; fn split_by(&self, x: &T) -> (Range<usize>, Range<usize>, Range<usize>); } // min index self[i] >= x // that is, any j (j < i) holds self[j] < x impl<T: Ord> BinarySearch<T> for [T] { fn lower_bound(&self, x: &T) -> usize { if self[0] >= *x { return 0; } let mut lf = 0; let mut rg = self.len(); // self[lf] < x while rg - lf > 1 { let md = (rg + lf) / 2; if self[md] < *x { lf = md; } else { rg = md; } } rg } // min index self[i] > x // that is, any j (j < i) holds self[j] <= x fn upper_bound(&self, x: &T) -> usize { if self[0] > *x { return 0; } let mut lf = 0; let mut rg = self.len(); // self[lf] <= x while rg - lf > 1 { let md = (rg + lf) / 2; if self[md] <= *x { lf = md; } else { rg = md; } } rg } fn split_by(&self, x: &T) -> (Range<usize>, Range<usize>, Range<usize>) { let i = self.lower_bound(x); let j = self.upper_bound(x); (0..i, i..j, j..self.len()) } } } use binary_search::BinarySearch; fn main() { let stdin = std::io::stdin(); let mut rd = ProconReader::new(stdin.lock()); let n: usize = rd.get(); let a: Vec<i64> = (0..n).map(|_| rd.get()).collect(); let b: Vec<i64> = (0..n).map(|_| rd.get()).collect(); if a[0] != b[0] || a[n - 1] != b[n - 1] { println!("-1"); return; } let a = a.windows(2).map(|w| w[0] ^ w[1]).collect::<Vec<_>>(); let b = b.windows(2).map(|w| w[0] ^ w[1]).collect::<Vec<_>>(); let mut c = a.clone(); c.sort(); let mut d = b.clone(); d.sort(); if c.iter().zip(&d).any(|(cc, dd)| cc != dd) { println!("-1"); return; } c.dedup(); let idx = |x: i64| c.lower_bound(&x); let m = c.len(); let mut ques = vec![std::collections::VecDeque::new(); m]; for (i, &x) in a.iter().enumerate() { ques[idx(x)].push_back(i); } let mut fen = FenwickTree::new(n - 1); for i in 1..=(n - 1) { fen.add(i, 1); } let mut ans = 0; for x in b { let i = ques[idx(x)].pop_front().unwrap(); ans += fen.sum(1, i); fen.add(i + 1, -1); } println!("{}", ans); }