結果
問題 | No.1072 A Nice XOR Pair |
ユーザー | McGregorsh |
提出日時 | 2022-07-09 09:02:16 |
言語 | PyPy3 (7.3.15) |
結果 |
RE
|
実行時間 | - |
コード長 | 1,754 bytes |
コンパイル時間 | 313 ms |
コンパイル使用メモリ | 81,848 KB |
実行使用メモリ | 133,292 KB |
最終ジャッジ日時 | 2024-06-09 14:24:59 |
合計ジャッジ時間 | 3,429 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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 | 127 ms
89,096 KB |
testcase_01 | AC | 128 ms
89,464 KB |
testcase_02 | AC | 132 ms
89,200 KB |
testcase_03 | AC | 126 ms
89,612 KB |
testcase_04 | RE | - |
testcase_05 | AC | 119 ms
89,768 KB |
testcase_06 | AC | 138 ms
90,624 KB |
testcase_07 | AC | 324 ms
133,292 KB |
testcase_08 | AC | 213 ms
98,176 KB |
testcase_09 | RE | - |
testcase_10 | RE | - |
testcase_11 | AC | 293 ms
114,312 KB |
testcase_12 | AC | 311 ms
130,100 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[A[i]] += 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()