結果
問題 | No.1240 Or Sum of Xor Pair |
ユーザー | tamato |
提出日時 | 2020-09-25 23:19:29 |
言語 | PyPy3 (7.3.15) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,744 bytes |
コンパイル時間 | 191 ms |
コンパイル使用メモリ | 82,352 KB |
実行使用メモリ | 283,128 KB |
最終ジャッジ日時 | 2024-06-28 07:24:59 |
合計ジャッジ時間 | 10,064 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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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 | 60 ms
80,628 KB |
testcase_01 | AC | 61 ms
74,444 KB |
testcase_02 | AC | 70 ms
77,344 KB |
testcase_03 | AC | 197 ms
96,188 KB |
testcase_04 | AC | 216 ms
96,284 KB |
testcase_05 | AC | 189 ms
94,800 KB |
testcase_06 | AC | 174 ms
92,748 KB |
testcase_07 | AC | 173 ms
92,080 KB |
testcase_08 | AC | 166 ms
91,840 KB |
testcase_09 | AC | 189 ms
94,300 KB |
testcase_10 | AC | 620 ms
139,596 KB |
testcase_11 | AC | 671 ms
149,824 KB |
testcase_12 | AC | 1,106 ms
185,020 KB |
testcase_13 | AC | 941 ms
171,432 KB |
testcase_14 | AC | 1,044 ms
186,176 KB |
testcase_15 | TLE | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
testcase_32 | -- | - |
ソースコード
mod = 1000000007 eps = 10**-9 def main(): import sys from collections import Counter input = sys.stdin.readline def plus(a, b): return a+b def f(A, B): return [a + b for a, b in zip(A, B)] ident = (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) class SegmentTree: def __init__(self, A, initialize=True, segfunc=f, ident=ident): self.N = len(A) self.LV = (self.N - 1).bit_length() self.N0 = 1 << self.LV self.segfunc = segfunc self.ident = ident if initialize: self.data = [self.ident] * self.N0 + A + [self.ident] * (self.N0 - self.N) for i in range(self.N0 - 1, 0, -1): self.data[i] = segfunc(self.data[i * 2], self.data[i * 2 + 1]) else: self.data = [self.ident] * (self.N0 * 2) def update(self, i, x): i += self.N0 - 1 self.data[i] = x for _ in range(self.LV): i >>= 1 self.data[i] = self.segfunc(self.data[i * 2], self.data[i * 2 + 1]) # open interval [l, r) def query(self, l, r): l += self.N0 - 1 r += self.N0 - 1 ret_l = self.ident ret_r = self.ident while l < r: if l & 1: ret_l = self.segfunc(ret_l, self.data[l]) l += 1 if r & 1: ret_r = self.segfunc(self.data[r - 1], ret_r) r -= 1 l >>= 1 r >>= 1 return self.segfunc(ret_l, ret_r) # return smallest i(l <= i < r) s.t. check(A[i]) == True def binsearch(self, l, r, check): if not check(self.query(l, r)): return r l += self.N0 - 1 val = self.ident while True: if check(self.segfunc(val, self.data[l])): break if l & 1: val = self.segfunc(val, self.data[l]) l += 1 l >>= 1 while l < self.N0: newval = self.segfunc(val, self.data[l * 2]) if not check(newval): val = newval l = (l << 1) + 1 else: l <<= 1 return l - self.N0 + 1 N, X = map(int, input().split()) A = list(map(int, input().split())) NN = 2**18 ST = SegmentTree([ident for _ in range(NN)], initialize=False) ST_cnt = SegmentTree([0] * NN, initialize=False, segfunc=plus, ident=0) C = Counter(A) for a in C: tmp = [0] * 18 for i in range(18): tmp[i] = (1 - (a >> i & 1)) * C[a] ST.update(a+1, tuple(tmp)) ST_cnt.update(a+1, C[a]) ans = 0 if X == 2**18: assert False for a in A: zero_bit = [] for i in range(18): if not a >> i & 1: zero_bit.append(i) current_node = 1 for i in range(17, -1, -1): x = X >> i & 1 aa = a >> i & 1 if x == 1: y = aa small_node = current_node * 2 + y ans += (NN-1) * ST_cnt.data[small_node] num = ST.data[small_node] for j in zero_bit: ans -= (1 << j) * num[j] current_node = current_node * 2 + (1 - y) else: current_node = current_node * 2 + aa #if a == 1: # print(ST.data[current_node]) ans -= a #print(a, ans) print(ans // 2) if __name__ == '__main__': main()