結果

問題 No.1072 A Nice XOR Pair
ユーザー dot_haraaidot_haraai
提出日時 2021-03-28 19:58:59
言語 Nim
(2.0.2)
結果
AC  
実行時間 139 ms / 2,000 ms
コード長 946 bytes
コンパイル時間 3,928 ms
コンパイル使用メモリ 75,588 KB
実行使用メモリ 40,244 KB
最終ジャッジ日時 2023-08-19 15:49:14
合計ジャッジ時間 5,609 ms
ジャッジサーバーID
(参考情報)
judge11 / judge15
このコードへのチャレンジ
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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
4,376 KB
testcase_01 AC 1 ms
4,380 KB
testcase_02 AC 1 ms
4,380 KB
testcase_03 AC 2 ms
4,376 KB
testcase_04 AC 1 ms
4,376 KB
testcase_05 AC 1 ms
4,380 KB
testcase_06 AC 3 ms
4,376 KB
testcase_07 AC 139 ms
40,244 KB
testcase_08 AC 82 ms
4,376 KB
testcase_09 AC 85 ms
4,380 KB
testcase_10 AC 87 ms
4,380 KB
testcase_11 AC 102 ms
13,536 KB
testcase_12 AC 135 ms
40,240 KB
権限があれば一括ダウンロードができます
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

diff #

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()
0