結果
問題 | No.777 再帰的ケーキ |
ユーザー | shotoyoo |
提出日時 | 2021-07-22 13:21:29 |
言語 | PyPy3 (7.3.15) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,485 bytes |
コンパイル時間 | 151 ms |
コンパイル使用メモリ | 82,572 KB |
実行使用メモリ | 146,440 KB |
最終ジャッジ日時 | 2024-07-17 14:40:04 |
合計ジャッジ時間 | 10,088 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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 | 39 ms
53,700 KB |
testcase_01 | AC | 39 ms
54,720 KB |
testcase_02 | AC | 38 ms
53,744 KB |
testcase_03 | AC | 38 ms
53,476 KB |
testcase_04 | AC | 38 ms
53,448 KB |
testcase_05 | AC | 38 ms
54,796 KB |
testcase_06 | WA | - |
testcase_07 | AC | 39 ms
54,856 KB |
testcase_08 | AC | 38 ms
53,500 KB |
testcase_09 | AC | 39 ms
54,020 KB |
testcase_10 | AC | 38 ms
53,536 KB |
testcase_11 | AC | 37 ms
53,616 KB |
testcase_12 | AC | 38 ms
53,496 KB |
testcase_13 | AC | 38 ms
53,288 KB |
testcase_14 | AC | 39 ms
53,568 KB |
testcase_15 | AC | 37 ms
53,648 KB |
testcase_16 | AC | 38 ms
53,336 KB |
testcase_17 | AC | 38 ms
53,696 KB |
testcase_18 | AC | 38 ms
53,812 KB |
testcase_19 | AC | 39 ms
53,324 KB |
testcase_20 | AC | 38 ms
53,504 KB |
testcase_21 | AC | 113 ms
78,096 KB |
testcase_22 | AC | 114 ms
78,176 KB |
testcase_23 | AC | 68 ms
72,176 KB |
testcase_24 | AC | 65 ms
71,700 KB |
testcase_25 | AC | 117 ms
78,208 KB |
testcase_26 | AC | 118 ms
78,284 KB |
testcase_27 | AC | 65 ms
71,544 KB |
testcase_28 | AC | 1,033 ms
137,196 KB |
testcase_29 | AC | 1,040 ms
136,184 KB |
testcase_30 | AC | 1,100 ms
145,520 KB |
testcase_31 | AC | 1,127 ms
146,440 KB |
testcase_32 | AC | 496 ms
135,532 KB |
testcase_33 | AC | 223 ms
102,548 KB |
testcase_34 | AC | 254 ms
110,412 KB |
testcase_35 | AC | 951 ms
132,652 KB |
testcase_36 | AC | 522 ms
135,356 KB |
ソースコード
import sys input = lambda : sys.stdin.readline().rstrip() sys.setrecursionlimit(2*10**5+10) write = lambda x: sys.stdout.write(x+"\n") debug = lambda x: sys.stderr.write(x+"\n") writef = lambda x: print("{:.12f}".format(x)) ### セグメント木(はやい) class SG: def __init__(self, n, v=None): self._n = n self.geta = 0 x = 0 while (1 << x) < n: x += 1 self._log = x self._size = 1 << self._log self._d = [ninf] * (2 * self._size) if v is not None: for i in range(self._n): self._d[self._size + i] = v[i] for i in range(self._size - 1, 0, -1): self._update(i) def _update(self, k): self._d[k] = op(self._d[2 * k], self._d[2 * k + 1]) def update(self, p, x): assert 0 <= p < self._n # x -= self.geta p += self._size self._d[p] = x for i in range(1, self._log + 1): # self._update(p >> i) k = p>>i self._d[k] = op(self._d[2 * k], self._d[2 * k + 1]) def get(self, p): assert 0 <= p < self._n return self._d[p + self._size] # + self.geta def check(self): return [self.get(p) for p in range(self._n)] def query(self, left, right): # [l,r)の総和 assert 0 <= left <= right <= self._n sml = ninf smr = ninf left += self._size right += self._size # 外側から計算していく(lは小さい側から, rは大きい側から) while left < right: if left & 1: sml = op(sml, self._d[left]) left += 1 if right & 1: right -= 1 smr = op(self._d[right], smr) left >>= 1 right >>= 1 return op(sml, smr) # + self.geta # def update_all(self, v): # # 全体加算 # self.geta += v def query_all(self): return self._d[1] # + self.geta def max_right(self, left, f): """f(op(a[l], a[l + 1], ..., a[r - 1])) = true となる最大の r -> rはf(op(a[l:r+1]))がFalseになる最小のr """ # assert 0 <= left <= self._n # assert f(ninf) if left == self._n: return self._n left += self._size sm = ninf first = True while first or (left & -left) != left: first = False while left % 2 == 0: left >>= 1 if not f(op(sm, self._d[left])): while left < self._size: left *= 2 if f(op(sm, self._d[left])): sm = op(sm, self._d[left]) left += 1 return left - self._size sm = op(sm, self._d[left]) left += 1 return self._n def min_left(self, right, f): """f(op(a[l], a[l + 1], ..., a[r - 1])) = true となる最小の l """ # assert 0 <= right <= self._n # assert f(ninf) if right == 0: return 0 right += self._size sm = ninf first = True while first or (right & -right) != right: first = False right -= 1 while right > 1 and right % 2: right >>= 1 if not f(op(self._d[right], sm)): while right < self._size: right = 2 * right + 1 if f(op(self._d[right], sm)): sm = op(self._d[right], sm) right -= 1 return right + 1 - self._size sm = op(self._d[right], sm) return 0 op = max ninf = 0 ### 座標圧縮 (一次元) from bisect import bisect_left def press(l): """xs: ソートした座標値 inds: lの各要素のxsにおけるインデックス """ # xs[inds[i]]==l[i]となる xs = sorted(set(l)) inds = [None] * len(l) d = {} for i,item in enumerate(l): inds[i] = bisect_left(xs, item) d[item] = inds[i] return xs, inds, d n = int(input()) abc = [list(map(int, input().split())) for _ in range(n)] bs, inds, d = press([abc[i][1] for i in range(n)]) index = list(range(n)) index.sort(key=lambda i: (-abc[i][0])) m = len(bs) sg = SG(m, [0]*m) for ind in index: a,b,c = abc[ind] i = d[b] v = max(sg.get(i), c + sg.query(i+1,m)) sg.update(i, v) ans = sg.query(0,m) print(ans)