結果
問題 | No.2611 Count 01 |
ユーザー | Mitarushi |
提出日時 | 2024-01-07 01:43:43 |
言語 | Nim (2.0.2) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,705 bytes |
コンパイル時間 | 5,902 ms |
コンパイル使用メモリ | 67,068 KB |
実行使用メモリ | 196,732 KB |
最終ジャッジ日時 | 2024-09-28 03:28:10 |
合計ジャッジ時間 | 40,510 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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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 | WA | - |
testcase_01 | AC | 2 ms
6,812 KB |
testcase_02 | WA | - |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
ソースコード
import strutils, sequtils, deques type stdinReader = object buf: Deque[string] func newStdinReader(): stdinReader = result = stdinReader(buf: initDeque[string]()) proc readString(sr: var stdinReader): string = if sr.buf.len == 0: sr.buf = stdin.readLine.split.toDeque sr.buf.popFirst proc readInt(sr: var stdinReader): int = readString(sr).parseInt type SegmentTree[T] = object n: int data: seq[T] func init[T](n: int, e: T): SegmentTree[T] = var n2 = 1 while n2 < n: n2 *= 2 SegmentTree[T](n: n2, data: newSeqWith[T](n2 * 2, e)) proc build[T](st: var SegmentTree[T], a: seq[T]) = for i, x in a: st.data[i + st.n] = x for i in countdown(st.n - 1, 1): st.data[i] = st.data[i * 2] + st.data[i * 2 + 1] proc update[T](st: var SegmentTree[T], i: int, x: T) = var k = i + st.n st.data[k] = x while k > 1: k = k div 2 st.data[k] = st.data[k * 2] + st.data[k * 2 + 1] func query[T](st: SegmentTree[T], l: int, r: int): T = var l = l + st.n r = r + st.n var ls, rs: T while l < r: if (l and 1) == 1: ls = ls + st.data[l] l += 1 if (r and 1) == 1: r -= 1 rs = st.data[r] + rs l = l div 2 r = r div 2 ls + rs const MOD = 998244353 type Matrix = array[6, array[6, int]] func `+`(a, b: Matrix): Matrix = if a.len == 0: return b if b.len == 0: return a for i in 0 ..< a.len: for j in 0..i: for k in 0..i: result[i][j] = (result[i][j] + a[i][k] * b[k][j]) mod MOD let node: array[2, Matrix] = [ [ [1, 0, 0, 0, 0, 0], [1, 1, 0, 0, 0, 0], [1, 1, 1, 0, 0, 0], [0, 0, 0, 1, 0, 0], [0, 0, 0, 1, 1, 0], [0, 0, 0, 1, 1, 1], ], [ [1, 0, 0, 0, 0, 0], [1, 1, 0, 0, 0, 0], [0, 0, 1, 0, 0, 0], [1, 1, 0, 1, 0, 0], [0, 0, 1, 0, 1, 0], [0, 0, 1, 0, 1, 1], ] ] let identity: Matrix = [ [1, 0, 0, 0, 0, 0], [0, 1, 0, 0, 0, 0], [0, 0, 1, 0, 0, 0], [0, 0, 0, 1, 0, 0], [0, 0, 0, 0, 1, 0], [0, 0, 0, 0, 0, 1], ] var reader = newStdinReader() let (n, q) = (reader.readInt, reader.readInt) let s = reader.readString var sSeq = s.mapIt(int(it) - int('0')) var st = init[Matrix](n, identity) st.build(sSeq.mapIt(node[it])) for _ in 0..<q: let t = reader.readInt if t == 1: let i = reader.readInt - 1 sSeq[i] = 1 - sSeq[i] st.update(i, node[sSeq[i]]) else: let (l, r) = (reader.readInt - 1, reader.readInt) let ans = st.query(l, r) echo ans[5][0]