結果
問題 | No.1072 A Nice XOR Pair |
ユーザー | McGregorsh |
提出日時 | 2023-05-18 00:23:47 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 354 ms / 2,000 ms |
コード長 | 1,534 bytes |
コンパイル時間 | 585 ms |
コンパイル使用メモリ | 82,560 KB |
実行使用メモリ | 121,984 KB |
最終ジャッジ日時 | 2024-05-09 07:32:58 |
合計ジャッジ時間 | 4,549 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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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 | 167 ms
89,600 KB |
testcase_01 | AC | 163 ms
89,344 KB |
testcase_02 | AC | 162 ms
89,472 KB |
testcase_03 | AC | 161 ms
89,216 KB |
testcase_04 | AC | 164 ms
89,216 KB |
testcase_05 | AC | 162 ms
89,216 KB |
testcase_06 | AC | 186 ms
90,496 KB |
testcase_07 | AC | 354 ms
119,168 KB |
testcase_08 | AC | 266 ms
92,416 KB |
testcase_09 | AC | 266 ms
92,672 KB |
testcase_10 | AC | 271 ms
92,544 KB |
testcase_11 | AC | 328 ms
105,216 KB |
testcase_12 | AC | 349 ms
121,984 KB |
ソースコード
import sys, re from fractions import Fraction from math import ceil, floor, sqrt, pi, factorial, gcd from copy import deepcopy from collections import Counter, deque, defaultdict from heapq import heapify, heappop, heappush from itertools import accumulate, product, combinations, combinations_with_replacement, permutations from bisect import bisect, bisect_left, bisect_right from functools import reduce from decimal import Decimal, getcontext, ROUND_HALF_UP def i_input(): return int(input()) def i_map(): return map(int, input().split()) def i_list(): return list(i_map()) def i_row(N): return [i_input() for _ in range(N)] def i_row_list(N): return [i_list() for _ in range(N)] def s_input(): return input() def s_map(): return input().split() def s_list(): return list(s_map()) def s_row(N): return [s_input for _ in range(N)] def s_row_str(N): return [s_list() for _ in range(N)] def s_row_list(N): return [list(s_input()) for _ in range(N)] def lcm(a, b): return a * b // gcd(a, b) def get_distance(x1, y1, x2, y2): d = sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2) return d def rotate(table): n_fild = [] for x in zip(*table[::-1]): n_fild.append(x) return n_fild sys.setrecursionlimit(10 ** 7) INF = float('inf') MOD = 10 ** 9 + 7 MOD2 = 998244353 def main(): N, X = i_map() A = [int(input()) for i in range(N)] CA = Counter(A) ans = 0 for i in range(N): CA[A[i]] -= 1 p = A[i] ^ X ans += CA[p] print(ans) if __name__ == '__main__': main()