結果
| 問題 | No.1072 A Nice XOR Pair | 
| コンテスト | |
| ユーザー |  | 
| 提出日時 | 2021-03-28 19:58:59 | 
| 言語 | Nim (2.2.0) | 
| 結果 | 
                                AC
                                 
                             | 
| 実行時間 | 188 ms / 2,000 ms | 
| コード長 | 946 bytes | 
| コンパイル時間 | 4,252 ms | 
| コンパイル使用メモリ | 87,732 KB | 
| 実行使用メモリ | 40,020 KB | 
| 最終ジャッジ日時 | 2024-11-29 09:23:36 | 
| 合計ジャッジ時間 | 5,810 ms | 
| ジャッジサーバーID (参考情報) | judge2 / judge3 | 
(要ログイン)
| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 2 | 
| other | AC * 11 | 
コンパイルメッセージ
/home/judge/data/code/Main.nim(2, 18) Warning: Use the new 'sugar' module instead; future is deprecated [Deprecated] /home/judge/data/code/Main.nim(1, 8) Warning: imported and not used: 'times' [UnusedImport] /home/judge/data/code/Main.nim(2, 26) Warning: imported and not used: 'strformat' [UnusedImport] /home/judge/data/code/Main.nim(1, 25) Warning: imported and not used: 'sequtils' [UnusedImport] /home/judge/data/code/Main.nim(2, 37) Warning: imported and not used: 'deques' [UnusedImport] /home/judge/data/code/Main.nim(1, 41) Warning: imported and not used: 'algorithm' [UnusedImport] /home/judge/data/code/Main.nim(2, 18) Warning: imported and not used: 'future' [UnusedImport] /home/judge/data/code/Main.nim(2, 8) Warning: imported and not used: 'critbits' [UnusedImport] /home/judge/data/code/Main.nim(1, 66) Warning: imported and not used: 'lists' [UnusedImport] /home/judge/data/code/Main.nim(1, 73) Warning: imported and not used: 'intsets' [UnusedImport]
ソースコード
import times, strutils, sequtils, math, algorithm, tables, sets, lists, intsets
import critbits, future, strformat, deques
template `max=`(x,y) = x = max(x,y)
template `min=`(x,y) = x = min(x,y)
template `mod=`(x,y) = x = x mod y
template scan2 = (scan(), scan())
template scan3 = (scan(), scan())
let read* = iterator: string {.closure.} =
    while true: (for s in stdin.readLine.split: yield s)
proc scan(): int = read().parseInt
proc scanf(): float = read().parseFloat
proc toInt(c:char): int =
    return int(c) - int('0')
proc solve():int=
  var
    n = scan()
    x = scan()
    d = initTable[int,int]()
    vals = initHashSet[int]()
  for i in 0..<n:
    var v = scan()
    vals.incl(v)
    if d.hasKeyOrPut(v,1):
      d[v]+=1
  for v in vals:
    if d.hasKey(v) and d.hasKey(x xor v):
      if v == (x xor v):
        result+=d[v]*(d[v]-1)
      else:
        result+=d[v]*d[x xor v]
  result = result.div(2)
  
  
  
echo solve()
            
            
            
        