結果
問題 | No.1072 A Nice XOR Pair |
ユーザー | McGregorsh |
提出日時 | 2023-05-18 00:21:40 |
言語 | PyPy3 (7.3.15) |
結果 |
WA
|
実行時間 | - |
コード長 | 1,517 bytes |
コンパイル時間 | 476 ms |
コンパイル使用メモリ | 82,252 KB |
実行使用メモリ | 119,168 KB |
最終ジャッジ日時 | 2024-05-09 07:31:18 |
合計ジャッジ時間 | 4,722 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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 | AC | 147 ms
89,604 KB |
testcase_01 | AC | 148 ms
89,556 KB |
testcase_02 | AC | 147 ms
89,688 KB |
testcase_03 | AC | 152 ms
89,588 KB |
testcase_04 | WA | - |
testcase_05 | AC | 149 ms
89,568 KB |
testcase_06 | AC | 169 ms
90,600 KB |
testcase_07 | AC | 304 ms
118,968 KB |
testcase_08 | AC | 253 ms
92,416 KB |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | AC | 285 ms
103,936 KB |
testcase_12 | AC | 298 ms
119,168 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): p = A[i] ^ X ans += CA[p] print(ans//2) if __name__ == '__main__': main()