結果
| 問題 |
No.875 Range Mindex Query
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2019-09-06 21:54:19 |
| 言語 | Nim (2.2.0) |
| 結果 |
AC
|
| 実行時間 | 241 ms / 2,000 ms |
| コード長 | 2,464 bytes |
| コンパイル時間 | 2,473 ms |
| コンパイル使用メモリ | 61,272 KB |
| 実行使用メモリ | 6,912 KB |
| 最終ジャッジ日時 | 2024-07-02 16:06:24 |
| 合計ジャッジ時間 | 5,214 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 18 |
ソースコード
import sequtils
# import algorithm,math,tables
# import times,macros,queues,bitops,strutils,intsets,sets
# import rationals,critbits,ropes,nre,pegs,complex,stats,heapqueue,sugar
template times*(n:int,body) = (for _ in 0..<n: body)
template `max=`*(x,y) = x = max(x,y)
template `min=`*(x,y) = x = min(x,y)
# template stopwatch(body) = (let t1 = cpuTime();body;stderr.writeLine "TIME:",(cpuTime() - t1) * 1000,"ms")
# proc `^`(n:int) : int{.inline.} = (1 shl n)
proc getchar_unlocked():char {. importc:"getchar_unlocked",header: "<stdio.h>" ,discardable.}
proc scan(): int =
while true:
let k = getchar_unlocked()
if k < '0': return
result = 10 * result + k.ord - '0'.ord
import sequtils,math
type
ValWithIndex[T] = tuple[val:T,index:int]
SegmentTreeWithIndex[T] = ref object
data:seq[ValWithIndex[T]]
n : int
rawSize:int
infinity: T
cmp:proc(x,y:ValWithIndex[T]):ValWithIndex[T]
proc newSegmentTree[T](size:int) : SegmentTreeWithIndex[T] =
new(result)
result.infinity = 1e12.T
proc minimpl[T](x,y:ValWithIndex[T]): ValWithIndex[T] =
if x.val <= y.val: x
else: y
result.cmp = minimpl
result.n = size.nextPowerOfTwo()
result.rawSize = size
result.data = newSeqWith(result.n * 2,(result.infinity,-1))
proc `[]=`[T](self:var SegmentTreeWithIndex[T],i:int,val:T) =
let baseI = i
var i = i + self.n - 1
self.data[i] = (val,baseI)
while i > 0:
i = (i - 1) shr 1
self.data[i] = self.cmp(self.data[i * 2 + 1],self.data[i * 2 + 2])
proc queryImpl[T](self:SegmentTreeWithIndex[T],a,b,k,l,r:int) : ValWithIndex[T] =
if r <= a or b <= l : return (self.infinity,-1)
if a <= l and r <= b : return self.data[k]
let vl = self.queryImpl(a,b,k*2+1,l,(l+r) shr 1)
let vr = self.queryImpl(a,b,k*2+2,(l+r) shr 1,r)
return self.cmp(vl,vr)
proc `[]`[T](self:SegmentTreeWithIndex[T],slice:Slice[int]): ValWithIndex[T] =
return self.queryImpl(slice.a,slice.b+1,0,0,self.n)
proc `$`[T](self:SegmentTreeWithIndex[T]): string =
var arrs : seq[seq[ValWithIndex[T]]] = @[]
var l = 0
var r = 1
while r <= self.data.len:
arrs.add self.data[l..<r]
l = l * 2 + 1
r = r * 2 + 1
return $arrs
let n = scan()
let q = scan()
var S = newSegmentTree[int](n)
for i in 0..<n: S[i] = scan()
q.times:
let (x,l,r) = (scan(),scan()-1,scan()-1)
if x == 1:
var lx = S[l..l].val
var rx = S[r..r].val
S[l] = rx
S[r] = lx
else:
# echo S
let x = S[l..r]
echo x.index + 1