結果
問題 | No.1072 A Nice XOR Pair |
ユーザー | McGregorsh |
提出日時 | 2022-07-09 09:09:11 |
言語 | PyPy3 (7.3.15) |
結果 |
RE
|
実行時間 | - |
コード長 | 1,753 bytes |
コンパイル時間 | 163 ms |
コンパイル使用メモリ | 82,324 KB |
実行使用メモリ | 132,328 KB |
最終ジャッジ日時 | 2024-06-09 14:32:03 |
合計ジャッジ時間 | 3,800 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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 | 131 ms
89,772 KB |
testcase_01 | AC | 141 ms
89,172 KB |
testcase_02 | AC | 142 ms
89,744 KB |
testcase_03 | AC | 133 ms
89,680 KB |
testcase_04 | RE | - |
testcase_05 | AC | 137 ms
89,568 KB |
testcase_06 | AC | 160 ms
90,540 KB |
testcase_07 | AC | 379 ms
132,328 KB |
testcase_08 | AC | 242 ms
98,264 KB |
testcase_09 | RE | - |
testcase_10 | RE | - |
testcase_11 | AC | 330 ms
112,588 KB |
testcase_12 | AC | 365 ms
130,588 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 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 ###関数コピーしたか?### def main(): n, x = i_map() A = [] nums = set() count_a = defaultdict(int) for i in range(n): num = int(input()) nums.add(num) A.append(num) count_a[num] += 1 ans = 0 for i in range(n): point = A[i] ^ x if point in nums: ans += count_a[A[i]] * count_a[point] nums.remove(A[i]) nums.remove(point) print(ans) if __name__ == '__main__': main()