結果
問題 | No.1441 MErGe |
ユーザー | 沙耶花 |
提出日時 | 2020-11-26 17:58:28 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 446 ms / 1,000 ms |
コード長 | 6,717 bytes |
コンパイル時間 | 2,394 ms |
コンパイル使用メモリ | 211,104 KB |
実行使用メモリ | 18,944 KB |
最終ジャッジ日時 | 2024-10-12 06:05:18 |
合計ジャッジ時間 | 11,601 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 3 ms
5,248 KB |
testcase_04 | AC | 3 ms
5,248 KB |
testcase_05 | AC | 8 ms
5,248 KB |
testcase_06 | AC | 8 ms
5,248 KB |
testcase_07 | AC | 8 ms
5,248 KB |
testcase_08 | AC | 86 ms
7,168 KB |
testcase_09 | AC | 80 ms
7,296 KB |
testcase_10 | AC | 147 ms
7,168 KB |
testcase_11 | AC | 128 ms
5,376 KB |
testcase_12 | AC | 142 ms
7,296 KB |
testcase_13 | AC | 369 ms
18,664 KB |
testcase_14 | AC | 382 ms
18,596 KB |
testcase_15 | AC | 390 ms
18,432 KB |
testcase_16 | AC | 368 ms
18,688 KB |
testcase_17 | AC | 360 ms
18,560 KB |
testcase_18 | AC | 261 ms
17,920 KB |
testcase_19 | AC | 282 ms
18,432 KB |
testcase_20 | AC | 223 ms
17,792 KB |
testcase_21 | AC | 193 ms
11,392 KB |
testcase_22 | AC | 286 ms
11,264 KB |
testcase_23 | AC | 444 ms
18,816 KB |
testcase_24 | AC | 441 ms
18,872 KB |
testcase_25 | AC | 446 ms
18,816 KB |
testcase_26 | AC | 446 ms
18,944 KB |
testcase_27 | AC | 434 ms
18,848 KB |
testcase_28 | AC | 353 ms
18,852 KB |
testcase_29 | AC | 355 ms
18,944 KB |
ソースコード
#include <stdio.h> #include <bits/stdc++.h> #include <algorithm> #ifdef _MSC_VER #include <intrin.h> #endif namespace atcoder { namespace internal { // @param n `0 <= n` // @return minimum non-negative `x` s.t. `n <= 2**x` int ceil_pow2(int n) { int x = 0; while ((1U << x) < (unsigned int)(n)) x++; return x; } // @param n `1 <= n` // @return minimum non-negative `x` s.t. `(n & (1 << x)) != 0` int bsf(unsigned int n) { #ifdef _MSC_VER unsigned long index; _BitScanForward(&index, n); return index; #else return __builtin_ctz(n); #endif } } // namespace internal } // namespace atcoder #include <cassert> #include <iostream> #include <vector> namespace atcoder { template <class S, S (*op)(S, S), S (*e)(), class F, S (*mapping)(F, S), F (*composition)(F, F), F (*id)()> struct lazy_segtree { public: lazy_segtree() : lazy_segtree(0) {} lazy_segtree(int n) : lazy_segtree(std::vector<S>(n, e())) {} lazy_segtree(const std::vector<S>& v) : _n(int(v.size())) { log = internal::ceil_pow2(_n); size = 1 << log; d = std::vector<S>(2 * size, e()); lz = std::vector<F>(size, id()); for (int i = 0; i < _n; i++) d[size + i] = v[i]; for (int i = size - 1; i >= 1; i--) { update(i); } } void set(int p, S x) { assert(0 <= p && p < _n); p += size; for (int i = log; i >= 1; i--) push(p >> i); d[p] = x; for (int i = 1; i <= log; i++) update(p >> i); } S get(int p) { assert(0 <= p && p < _n); p += size; for (int i = log; i >= 1; i--) push(p >> i); return d[p]; } S prod(int l, int r) { assert(0 <= l && l <= r && r <= _n); if (l == r) return e(); l += size; r += size; for (int i = log; i >= 1; i--) { if (((l >> i) << i) != l) push(l >> i); if (((r >> i) << i) != r) push(r >> i); } S sml = e(), smr = e(); while (l < r) { if (l & 1) sml = op(sml, d[l++]); if (r & 1) smr = op(d[--r], smr); l >>= 1; r >>= 1; } return op(sml, smr); } S all_prod() { return d[1]; } void apply(int p, F f) { assert(0 <= p && p < _n); p += size; for (int i = log; i >= 1; i--) push(p >> i); d[p] = mapping(f, d[p]); for (int i = 1; i <= log; i++) update(p >> i); } void apply(int l, int r, F f) { assert(0 <= l && l <= r && r <= _n); if (l == r) return; l += size; r += size; for (int i = log; i >= 1; i--) { if (((l >> i) << i) != l) push(l >> i); if (((r >> i) << i) != r) push((r - 1) >> i); } { int l2 = l, r2 = r; while (l < r) { if (l & 1) all_apply(l++, f); if (r & 1) all_apply(--r, f); l >>= 1; r >>= 1; } l = l2; r = r2; } for (int i = 1; i <= log; i++) { if (((l >> i) << i) != l) update(l >> i); if (((r >> i) << i) != r) update((r - 1) >> i); } } template <bool (*g)(S)> int max_right(int l) { return max_right(l, [](S x) { return g(x); }); } template <class G> int max_right(int l, G g) { assert(0 <= l && l <= _n); assert(g(e())); if (l == _n) return _n; l += size; for (int i = log; i >= 1; i--) push(l >> i); S sm = e(); do { while (l % 2 == 0) l >>= 1; if (!g(op(sm, d[l]))) { while (l < size) { push(l); l = (2 * l); if (g(op(sm, d[l]))) { sm = op(sm, d[l]); l++; } } return l - size; } sm = op(sm, d[l]); l++; } while ((l & -l) != l); return _n; } template <bool (*g)(S)> int min_left(int r) { return min_left(r, [](S x) { return g(x); }); } template <class G> int min_left(int r, G g) { assert(0 <= r && r <= _n); assert(g(e())); if (r == 0) return 0; r += size; for (int i = log; i >= 1; i--) push((r - 1) >> i); S sm = e(); do { r--; while (r > 1 && (r % 2)) r >>= 1; if (!g(op(d[r], sm))) { while (r < size) { push(r); r = (2 * r + 1); if (g(op(d[r], sm))) { sm = op(d[r], sm); r--; } } return r + 1 - size; } sm = op(d[r], sm); } while ((r & -r) != r); return 0; } private: int _n, size, log; std::vector<S> d; std::vector<F> lz; void update(int k) { d[k] = op(d[2 * k], d[2 * k + 1]); } void all_apply(int k, F f) { d[k] = mapping(f, d[k]); if (k < size) lz[k] = composition(f, lz[k]); } void push(int k) { all_apply(2 * k, lz[k]); all_apply(2 * k + 1, lz[k]); lz[k] = id(); } }; } // namespace atcoder using namespace atcoder; using namespace std; #define rep(i,n) for (int i = 0; i < (n); ++i) #define modulo 998244353 #define mod(mod_x) ((((long long)mod_x+modulo))%modulo) #define Inf 1000000000 pair<long long,int> op(pair<long long,int> a,pair<long long,int> b){ a.first += b.first; a.second += b.second; return a; } pair<long long,int> e(){ return make_pair(0LL,0); } pair<long long,int> mapping(pair<long long,int> a,pair<long long,int> b){ if(a.second==-1)return b; return a; } pair<long long,int> composition(pair<long long,int> a,pair<long long,int> b){ if(a.second==-1)return b; if(b.second==-1)return a; return a; } pair<long long,int> id(){ return make_pair(0LL,-1); } int y; bool g(pair<long long,int> x){ return x.second <= y; } int main(){ int N,Q; cin>>N>>Q; vector<pair<long long,int>> A(N); rep(i,N){ scanf("%lld",&A[i].first); A[i].second = 1; } lazy_segtree<pair<long long,int>,op,e,pair<long long,int>,mapping,composition,id> seg(A); rep(i,Q){ int T,l,r; scanf("%d %d %d",&T,&l,&r); y = r; r = seg.max_right<g>(0); y = l-1; l = seg.max_right<g>(0); if(T==1){ long long S = seg.prod(l,r).first; seg.apply(l,r,e()); seg.set(l,make_pair(S,1)); } else{ printf("%lld\n",seg.prod(l,r).first); } } return 0; }