結果
問題 | No.876 Range Compress Query |
ユーザー | outline |
提出日時 | 2021-02-01 17:44:12 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 200 ms / 2,000 ms |
コード長 | 6,656 bytes |
コンパイル時間 | 1,518 ms |
コンパイル使用メモリ | 144,896 KB |
実行使用メモリ | 9,344 KB |
最終ジャッジ日時 | 2024-06-29 22:53:48 |
合計ジャッジ時間 | 3,775 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 | 2 ms
6,812 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 2 ms
6,944 KB |
testcase_08 | AC | 3 ms
6,944 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 2 ms
6,940 KB |
testcase_11 | AC | 190 ms
9,344 KB |
testcase_12 | AC | 160 ms
9,344 KB |
testcase_13 | AC | 163 ms
9,344 KB |
testcase_14 | AC | 189 ms
9,344 KB |
testcase_15 | AC | 141 ms
9,344 KB |
testcase_16 | AC | 190 ms
9,216 KB |
testcase_17 | AC | 188 ms
9,216 KB |
testcase_18 | AC | 200 ms
9,344 KB |
ソースコード
#include <iostream> #include <vector> #include <algorithm> #include <cmath> #include <queue> #include <string> #include <map> #include <set> #include <stack> #include <tuple> #include <deque> #include <array> #include <numeric> #include <bitset> #include <iomanip> #include <cassert> #include <chrono> #include <random> #include <limits> #include <iterator> #include <functional> #include <sstream> #include <fstream> #include <complex> #include <cstring> #include <unordered_map> #include <unordered_set> using namespace std; using ll = long long; constexpr int INF = 1001001001; // constexpr int mod = 1000000007; constexpr int mod = 998244353; template<class T> inline bool chmax(T& x, T y){ if(x < y){ x = y; return true; } return false; } template<class T> inline bool chmin(T& x, T y){ if(x > y){ x = y; return true; } return false; } template<typename Monoid, typename OperatorMonoid = Monoid> struct LazySegmentTree{ using F = function<Monoid(Monoid, Monoid)>; using G = function<Monoid(Monoid, OperatorMonoid)>; using H = function<OperatorMonoid(OperatorMonoid, OperatorMonoid)>; int sz; vector<Monoid> data; vector<OperatorMonoid> lazy; const F f; const G g; const H h; const Monoid M1; // モノイドの単位元 const OperatorMonoid OM0; // 作用素モノイドの単位元 LazySegmentTree(int n, const F f, const G g, const H h, const Monoid &M1, const OperatorMonoid OM0) : f(f), g(g), h(h), M1(M1), OM0(OM0) { sz = 1; while(sz < n) sz <<= 1; data.assign(sz << 1, M1); lazy.assign(sz << 1, OM0); } void set(int k, const Monoid &x){ data[k + sz] = x; } void build(){ for(int k = sz - 1; k > 0; --k){ data[k] = f(data[k << 1], data[k << 1 | 1]); } } void propagate(int k){ if(lazy[k] != OM0){ if(k < sz){ lazy[k << 1] = h(lazy[k << 1], lazy[k]); lazy[k << 1 | 1] = h(lazy[k << 1 | 1], lazy[k]); } data[k] = g(data[k], lazy[k]); lazy[k] = OM0; } } Monoid update(int a, int b, const OperatorMonoid &x, int k = 1, int l = 0, int r = -1){ if(r == -1) r = sz; propagate(k); if(r <= a || b <= l) return data[k]; else if(a <= l && r <= b){ lazy[k] = h(lazy[k], x); propagate(k); return data[k]; } else{ return data[k] = f(update(a, b, x, k << 1, l, (l + r) >> 1), update(a, b, x, k << 1 | 1, (l + r) >> 1, r)); } } Monoid query(int a, int b, int k = 1, int l = 0, int r = -1){ if(r == -1) r = sz; propagate(k); if(r <= a || b <= l) return M1; else if(a <= l && r <= b) return data[k]; else{ return f(query(a, b, k << 1, l, (l + r) >> 1), query(a, b, k << 1 | 1, (l + r) >> 1, r)); } } Monoid operator[](const int &k){ return query(k, k + 1); } }; template<typename Monoid> struct SegmentTree{ using F = function<Monoid(Monoid, Monoid)>; int sz; vector<Monoid> seg; const F f; const Monoid M1; SegmentTree(const F f, const Monoid& M1) : f(f), M1(M1) {} SegmentTree(int n, const F f, const Monoid &M1) : f(f), M1(M1) { sz = 1; while(sz < n) sz <<= 1; seg.assign(2 * sz, M1); } void resize(int n){ sz = 1; while(sz < n) sz <<= 1; seg.assign(2 * sz, M1); } void set(int k, const Monoid &x){ seg[k + sz] = x; } void build(){ for(int k = sz - 1; k > 0; --k){ seg[k] = f(seg[k << 1], seg[k << 1 | 1]); } } void update(int k, const Monoid &x){ k += sz; seg[k] = x; while(k >>= 1){ seg[k] = f(seg[k << 1], seg[k << 1 | 1]); } } Monoid query(int a, int b){ Monoid L = M1, R = M1; for(a += sz, b += sz; a < b; a >>= 1, b >>= 1){ if(a & 1) L = f(L, seg[a++]); if(b & 1) R = f(seg[--b], R); } return f(L, R); } Monoid operator[](const int &k) const{ return seg[k + sz]; } // (type = true) : find_last // (type = false) : find_first template<typename C> int find_subtree(int a, const C &check, Monoid &M, bool type){ while(a < sz){ Monoid nxt = type ? f(seg[a << 1 | type], M) : f(M, seg[a << 1 | type]); if(check(nxt)) a = a << 1 | type; else M = nxt, a = 2 * a + 1 - type; } return a - sz; } template<typename C> int find_first(int a, const C &check){ Monoid L = M1; if(a <= 0){ if(check(f(L, seg[1]))) return find_subtree(1, check, L, false); return -1; } int b = sz; for(a += sz, b += sz; a < b; a >>= 1, b >>= 1){ if(a & 1){ Monoid nxt = f(L, seg[a]); if(check(nxt)) return find_subtree(a, check, L, false); L = nxt; ++a; } } return -1; } template<typename C> int find_last(int b, const C &check){ Monoid R = M1; if(b >= sz){ if(check(f(seg[1], R))) return find_subtree(1, check, R, true); return -1; } int a = sz; for(b += sz; a < b; a >>= 1, b >>= 1){ if(b & 1){ Monoid nxt = f(seg[--b], R); if(check(nxt)) return find_subtree(b, check, R, true); R = nxt; } } return -1; } }; int main(){ ios::sync_with_stdio(false); cin.tie(nullptr); int N, Q, a; cin >> N >> Q; auto op = [](ll a, ll b){return a + b;}; LazySegmentTree<ll, ll> seg(N, op, op, op, 0, 0); for(int i = 0; i < N; ++i){ cin >> a; seg.set(i, a); } seg.build(); SegmentTree<ll> G(N, op, 0); for(int i = 0; i + 1 < N; ++i){ G.set(i, (seg[i] != seg[i + 1])); } G.build(); for(int i = 0; i < Q; ++i){ int q, l, r; cin >> q >> l >> r; --l; if(q == 1){ int x; cin >> x; seg.update(l, r, x); if(l > 0) G.update(l - 1, (seg[l - 1] != seg[l])); if(r < N) G.update(r - 1, (seg[r - 1] != seg[r])); } else{ cout << G.query(l, r - 1) + 1 << '\n'; } } return 0; }