結果
問題 | No.1234 典型RMQ |
ユーザー | brthyyjp |
提出日時 | 2020-09-19 04:33:32 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 546 ms / 2,000 ms |
コード長 | 2,847 bytes |
コンパイル時間 | 481 ms |
コンパイル使用メモリ | 82,572 KB |
実行使用メモリ | 99,840 KB |
最終ジャッジ日時 | 2024-11-09 02:10:08 |
合計ジャッジ時間 | 13,122 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 27 |
ソースコード
class LazySegTree: # RMQ and RAQ def __init__(self, init_val, seg_ide, lazy_ide, segfunc): self.n = len(init_val) self.num = 2**(self.n-1).bit_length() self.seg_ide = seg_ide self.lazy_ide = lazy_ide self.segfunc = segfunc # seg, lazy: 1-indexed self.seg = [seg_ide]*2*self.num for i in range(self.n): self.seg[i+self.num] = init_val[i] for i in range(self.num-1, 0, -1): self.seg[i] = self.segfunc(self.seg[2*i], self.seg[2*i+1]) self.lazy = [lazy_ide]*2*self.num def gindex(self, l, r): # l, r: 1-indexed L = l + self.num R = r + self.num lm = (L // (L & -L)) >> 1 rm = (R // (R & -R)) >> 1 while L < R: if R <= rm: yield R if L <= lm: yield L L = L >> 1 R = R >> 1 while L: yield L L = L >> 1 def propagate(self, *ids): # ids: 1-indexed for i in reversed(ids): v = self.lazy[i] if v == self.lazy_ide: continue self.lazy[2*i] += v self.lazy[2*i+1] += v self.seg[2*i] += v self.seg[2*i+1] += v self.lazy[i] = self.lazy_ide def update(self, l, r, x): # l, r: 0-indexed # add x to [l, r) L = l + self.num R = r + self.num while L < R: if R & 1: R -= 1 self.lazy[R] += x self.seg[R] += x if L & 1: self.lazy[L] += x self.seg[L] += x L += 1 L = L >> 1 R = R >> 1 for i in self.gindex(l, r): # i: 1-indexed self.seg[i] = self.segfunc(self.seg[2*i], self.seg[2*i+1]) + self.lazy[i] def query(self, l, r): # l, r: 0-indexed # query for [l, r) if r <= l: return self.seg_ide self.propagate(*self.gindex(l, r)) L = l + self.num R = r + self.num res = self.seg_ide while L < R: if R & 1: R -= 1 res = self.segfunc(res, self.seg[R]) if L & 1: res = self.segfunc(res, self.seg[L]) L += 1 L = L >> 1 R = R >> 1 return res INF = 10**18 import sys import io, os #input = sys.stdin.buffer.readline input = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline n = int(input()) A = list(map(int,input().split())) seg = LazySegTree(A, INF, 0, min) q = int(input()) for i in range(q): k, l, r, c = map(int, input().split()) l, r = l-1, r-1 if k == 1: seg.update(l, r+1, c) else: print(seg.query(l, r+1))