結果
問題 | No.879 Range Mod 2 Query |
ユーザー | 👑 emthrm |
提出日時 | 2019-09-08 18:15:32 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 389 ms / 3,000 ms |
コード長 | 5,250 bytes |
コンパイル時間 | 1,805 ms |
コンパイル使用メモリ | 134,472 KB |
実行使用メモリ | 14,824 KB |
最終ジャッジ日時 | 2024-06-27 15:06:52 |
合計ジャッジ時間 | 6,714 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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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 | 3 ms
5,376 KB |
testcase_02 | AC | 3 ms
5,376 KB |
testcase_03 | AC | 3 ms
5,376 KB |
testcase_04 | AC | 4 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 3 ms
5,376 KB |
testcase_08 | AC | 3 ms
5,376 KB |
testcase_09 | AC | 3 ms
5,376 KB |
testcase_10 | AC | 3 ms
5,376 KB |
testcase_11 | AC | 382 ms
13,796 KB |
testcase_12 | AC | 213 ms
13,932 KB |
testcase_13 | AC | 272 ms
13,928 KB |
testcase_14 | AC | 245 ms
14,308 KB |
testcase_15 | AC | 242 ms
9,448 KB |
testcase_16 | AC | 356 ms
14,564 KB |
testcase_17 | AC | 370 ms
14,824 KB |
testcase_18 | AC | 389 ms
14,564 KB |
testcase_19 | AC | 332 ms
14,436 KB |
testcase_20 | AC | 335 ms
14,440 KB |
testcase_21 | AC | 375 ms
14,440 KB |
ソースコード
#include <algorithm> #include <bitset> #include <cassert> #include <cctype> #include <chrono> #define _USE_MATH_DEFINES #include <cmath> #include <cstdio> #include <cstring> #include <ctime> #include <deque> #include <functional> #include <iostream> #include <iterator> #include <map> #include <numeric> #include <queue> #include <set> #include <sstream> #include <string> #include <tuple> #include <utility> #include <vector> using namespace std; #define FOR(i,m,n) for(int i=(m);i<(n);++i) #define REP(i,n) FOR(i,0,n) #define ALL(v) (v).begin(),(v).end() const int INF = 0x3f3f3f3f; const long long LINF = 0x3f3f3f3f3f3f3f3fLL; const double EPS = 1e-8; const int MOD = 1000000007; // 998244353; const int dy[] = {1, 0, -1, 0}, dx[] = {0, -1, 0, 1}; /*-------------------------------------------------*/ template <typename Monoid, typename OperatorMonoid = Monoid> struct LazySegTree { using MM = function<Monoid(Monoid, Monoid)>; using MOI = function<Monoid(Monoid, OperatorMonoid, int)>; using OO = function<OperatorMonoid(OperatorMonoid, OperatorMonoid)>; LazySegTree(int sz, const MM mm, const MOI moi, const OO oo, const Monoid &M_UNITY, const OperatorMonoid &O_UNITY) : mm(mm), moi(moi), oo(oo), M_UNITY(M_UNITY), O_UNITY(O_UNITY) { init(sz); dat.assign(n << 1, M_UNITY); } LazySegTree(const vector<Monoid> &a, const MM mm, const MOI moi, const OO oo, const Monoid &M_UNITY, const OperatorMonoid &O_UNITY) : mm(mm), moi(moi), oo(oo), M_UNITY(M_UNITY), O_UNITY(O_UNITY) { int a_sz = a.size(); init(a_sz); dat.resize(n << 1); REP(i, a_sz) dat[i + n] = a[i]; for (int i = n - 1; i > 0; --i) dat[i] = mm(dat[i << 1], dat[(i << 1) + 1]); } void update(int a, int b, const OperatorMonoid &value) { update(a, b, value, 1, 0, n); } Monoid query(int a, int b) { return query(a, b, 1, 0, n); } Monoid operator[](const int idx) { return query(idx, idx + 1); } private: int n = 1; const MM mm; const MOI moi; const OO oo; const Monoid M_UNITY; const OperatorMonoid O_UNITY; vector<Monoid> dat; vector<OperatorMonoid> lazy; vector<bool> need_to_be_eval; void init(int sz) { while (n < sz) n <<= 1; lazy.assign(n << 1, O_UNITY); need_to_be_eval.assign(n << 1, false); } inline void evaluate(int node, int len) { if (need_to_be_eval[node]) { dat[node] = moi(dat[node], lazy[node], len); if (node < n) { lazy[node << 1] = oo(lazy[node << 1], lazy[node]); need_to_be_eval[node << 1] = true; lazy[(node << 1) + 1] = oo(lazy[(node << 1) + 1], lazy[node]); need_to_be_eval[(node << 1) + 1] = true; } lazy[node] = O_UNITY; need_to_be_eval[node] = false; } } void update(int a, int b, const OperatorMonoid &value, int node, int left, int right) { evaluate(node, right - left); if (right <= a || b <= left) return; if (a <= left && right <= b) { lazy[node] = oo(lazy[node], value); need_to_be_eval[node] = true; evaluate(node, right - left); } else { update(a, b, value, node << 1, left, (left + right) >> 1); update(a, b, value, (node << 1) + 1, (left + right) >> 1, right); dat[node] = mm(dat[node << 1], dat[(node << 1) + 1]); } } Monoid query(int a, int b, int node, int left, int right) { evaluate(node, right - left); if (right <= a || b <= left) return M_UNITY; if (a <= left && right <= b) return dat[node]; return mm(query(a, b, node << 1, left, (left + right) >> 1), query(a, b, (node << 1) + 1, (left + right) >> 1, right)); } }; int main() { cin.tie(nullptr); ios::sync_with_stdio(false); // freopen("input.txt", "r", stdin); struct Node { int even, odd; long long sum; Node() {} Node(int even, int odd, long long sum) : even(even), odd(odd), sum(sum) {} }; struct Ope { long long pre, add; bool mod2; Ope() {} Ope(long long pre, bool mod2, long long add) : pre(pre), mod2(mod2), add(add) {} }; auto mm = [](Node a, Node b) { return Node(a.even + b.even, a.odd + b.odd, a.sum + b.sum); }; auto moi = [](Node a, Ope b, int len) { if (b.pre % 2 == 1) swap(a.even, a.odd); a.sum += b.pre * len; if (b.mod2) a.sum = a.odd; if (b.add % 2 == 1) swap(a.even, a.odd); a.sum += b.add * len; return a; }; auto oo = [](Ope l, Ope v) { Ope res = l; if (v.mod2) { res.pre += res.add + v.pre; res.mod2 = true; res.add = v.add; } else { res.add += v.add; } return res; }; int n, q; cin >> n >> q; vector<Node> a; REP(i, n) { int ai; cin >> ai; a.emplace_back(ai % 2 == 0, ai % 2 == 1, ai); } LazySegTree<Node, Ope> seg(a, mm, moi, oo, Node(0, 0, 0), Ope(0, false, 0)); while (q--) { int query, l, r; cin >> query >> l >> r; --l; --r; if (query == 1) { seg.update(l, r + 1, Ope(0, true, 0)); } else if (query == 2) { int x; cin >> x; seg.update(l, r + 1, Ope(0, false, x)); } else { cout << seg.query(l, r + 1).sum << '\n'; } } return 0; }