結果
問題 | No.1802 Range Score Query for Bracket Sequence |
ユーザー | phspls |
提出日時 | 2022-10-16 20:24:32 |
言語 | Rust (1.77.0 + proconio) |
結果 |
AC
|
実行時間 | 387 ms / 2,000 ms |
コード長 | 3,004 bytes |
コンパイル時間 | 12,597 ms |
コンパイル使用メモリ | 382,216 KB |
実行使用メモリ | 27,264 KB |
最終ジャッジ日時 | 2024-06-30 02:25:47 |
合計ジャッジ時間 | 17,284 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
(要ログイン)
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 | 279 ms
27,136 KB |
testcase_02 | AC | 270 ms
27,136 KB |
testcase_03 | AC | 264 ms
27,008 KB |
testcase_04 | AC | 283 ms
27,136 KB |
testcase_05 | AC | 286 ms
27,136 KB |
testcase_06 | AC | 277 ms
27,136 KB |
testcase_07 | AC | 302 ms
27,264 KB |
testcase_08 | AC | 291 ms
27,136 KB |
testcase_09 | AC | 270 ms
27,264 KB |
testcase_10 | AC | 290 ms
27,136 KB |
testcase_11 | AC | 266 ms
27,264 KB |
testcase_12 | AC | 243 ms
27,136 KB |
testcase_13 | AC | 249 ms
27,136 KB |
testcase_14 | AC | 387 ms
27,136 KB |
testcase_15 | AC | 1 ms
5,376 KB |
testcase_16 | AC | 1 ms
5,376 KB |
testcase_17 | AC | 0 ms
5,376 KB |
testcase_18 | AC | 1 ms
5,376 KB |
testcase_19 | AC | 1 ms
5,376 KB |
testcase_20 | AC | 1 ms
5,376 KB |
testcase_21 | AC | 1 ms
5,376 KB |
testcase_22 | AC | 0 ms
5,376 KB |
testcase_23 | AC | 0 ms
5,376 KB |
testcase_24 | AC | 1 ms
5,376 KB |
コンパイルメッセージ
warning: field `orgn` is never read --> src/main.rs:5:5 | 3 | struct SegmentTree<F, T> { | ----------- field in this struct 4 | n: usize, 5 | orgn: usize, | ^^^^ | = note: `SegmentTree` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis = note: `#[warn(dead_code)]` on by default
ソースコード
#[derive(Debug, Clone)] struct SegmentTree<F, T> { n: usize, orgn: usize, unit: T, mem: Vec<T>, operator: F } impl<F, T> SegmentTree<F, T> where T: std::fmt::Debug + Copy, F: Fn(T, T) -> T { fn new(n: usize, unit: T, operator: F) -> Self { let mut size = 1usize; while size < n { size *= 2; } Self { n: size, orgn: n, unit: unit, mem: vec![unit; size*2-1], operator: operator, } } fn find_closed(&self, l: usize, r: usize) -> T { self.find(l, r+1) } fn find(&self, l: usize, r: usize) -> T { self._find(l, r, 0, 0, self.n) } fn set(&mut self, pos: usize, val: T) { let mut pos = pos + self.n - 1; self.mem[pos] = val; while pos > 0 { pos = self._parent(pos); self.mem[pos] = (self.operator)(self.mem[self._left(pos)], self.mem[self._right(pos)]); } } fn get(&mut self, pos: usize) -> T { self.mem[pos + self.n - 1] } fn _find(&self, a: usize, b: usize, nodenum: usize, l: usize, r: usize) -> T { if r <= a || b <= l { return self.unit; } else if a <= l && r <= b { return self.mem[nodenum]; } let left = self._find(a, b, self._left(nodenum), l, (l+r)/2); let right = self._find(a, b, self._right(nodenum), (l+r)/2, r); (self.operator)(left, right) } fn _left(&self, k: usize) -> usize { 2*k+1 } fn _right(&self, k: usize) -> usize { 2*k+2 } fn _parent(&self, k: usize) -> usize { (k-1)/2 } } fn main() { let mut nq = String::new(); std::io::stdin().read_line(&mut nq).ok(); let nq: Vec<usize> = nq.trim().split_whitespace().map(|s| s.parse().unwrap()).collect(); let n = nq[0]; let q = nq[1]; let mut s = String::new(); std::io::stdin().read_line(&mut s).ok(); let s = s.trim().chars().map(|c| if c == '(' { -1 } else { 1 }).collect::<Vec<isize>>(); let queries = (0..q).map(|_| { let mut temp = String::new(); std::io::stdin().read_line(&mut temp).ok(); let temp: Vec<usize> = temp.trim().split_whitespace().map(|s| s.parse().unwrap()).collect(); temp }) .collect::<Vec<_>>(); let mut segtree = SegmentTree::new(n, (0isize, 0isize, 0usize), |(ll, lr, lsum), (rl, rr, rsum)| (ll, rr, lsum+rsum+if lr == -1 && rl == 1 { 1 } else { 0 })); for i in 0..n { segtree.set(i, (s[i], s[i], 0usize)); } for v in queries.iter() { if v[0] == 1 { let pos = v[1]-1; let val = segtree.get(pos); if val.0 == -1 { segtree.set(pos, (1,1,0)); } else { segtree.set(pos, (-1,-1,0)); } } else { let l = v[1]-1; let r = v[2]-1; println!("{}", segtree.find_closed(l, r).2); } } }