結果
問題 | No.876 Range Compress Query |
ユーザー | ferin |
提出日時 | 2019-09-06 21:39:55 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 210 ms / 2,000 ms |
コード長 | 7,378 bytes |
コンパイル時間 | 2,009 ms |
コンパイル使用メモリ | 181,196 KB |
実行使用メモリ | 25,056 KB |
最終ジャッジ日時 | 2024-06-24 17:14:03 |
合計ジャッジ時間 | 4,586 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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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 | 1 ms
6,816 KB |
testcase_01 | AC | 3 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | AC | 3 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 3 ms
6,940 KB |
testcase_07 | AC | 3 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,944 KB |
testcase_09 | AC | 3 ms
6,944 KB |
testcase_10 | AC | 3 ms
6,940 KB |
testcase_11 | AC | 203 ms
23,580 KB |
testcase_12 | AC | 172 ms
22,680 KB |
testcase_13 | AC | 173 ms
23,328 KB |
testcase_14 | AC | 199 ms
23,400 KB |
testcase_15 | AC | 141 ms
24,012 KB |
testcase_16 | AC | 198 ms
24,952 KB |
testcase_17 | AC | 193 ms
25,056 KB |
testcase_18 | AC | 210 ms
24,792 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; // #define int ll using PII = pair<ll, ll>; #define FOR(i, a, n) for (ll i = (ll)a; i < (ll)n; ++i) #define REP(i, n) FOR(i, 0, n) #define ALL(x) x.begin(), x.end() template<typename T> T &chmin(T &a, const T &b) { return a = min(a, b); } template<typename T> T &chmax(T &a, const T &b) { return a = max(a, b); } template<typename T> bool IN(T a, T b, T x) { return a<=x&&x<b; } template<typename T> T ceil(T a, T b) { return a/b + !!(a%b); } template<typename T> vector<T> make_v(size_t a) { return vector<T>(a); } template<typename T,typename... Ts> auto make_v(size_t a,Ts... ts) { return vector<decltype(make_v<T>(ts...))>(a,make_v<T>(ts...)); } template<typename T,typename V> typename enable_if<is_class<T>::value==0>::type fill_v(T &t, const V &v) { t=v; } template<typename T,typename V> typename enable_if<is_class<T>::value!=0>::type fill_v(T &t, const V &v ) { for(auto &e:t) fill_v(e,v); } template<class S,class T> ostream &operator <<(ostream& out,const pair<S,T>& a) { out<<'('<<a.first<<','<<a.second<<')'; return out; } template<class T> ostream &operator <<(ostream& out,const vector<T>& a){ out<<'['; for(const T &i: a) out<<i<<','; out<<']'; return out; } template<class T> ostream &operator <<(ostream& out, const set<T>& a) { out<<'{'; for(const T &i: a) out<<i<<','; out<<'}'; return out; } template<class T, class S> ostream &operator <<(ostream& out, const map<T,S>& a) { out<<'{'; for(auto &i: a) out<<i<<','; out<<'}'; return out; } int dx[] = {0, 1, 0, -1}, dy[] = {1, 0, -1, 0}; // DRUL const int INF = 1<<30; const ll LLINF = 1LL<<60; const ll MOD = 1000000007; template<typename Monoid> struct segtree { using T = typename Monoid::T; int n; vector<T> dat; segtree(int n_) { n = 1; while(n < n_) n <<= 1; dat.assign(n*2, Monoid::id()); } void build(vector<T> v) { REP(i, v.size()) dat[i+n] = v[i]; for(int i=n-1; i>0; --i) dat[i] = Monoid::op(dat[i*2], dat[i*2+1]); } T query(int a, int b) { T l = Monoid::id(), r = Monoid::id(); for(a+=n, b+=n; a<b; a>>=1, b>>=1) { if(a&1) l = Monoid::op(l, dat[a++]); if(b&1) r = Monoid::op(dat[--b], r); } return Monoid::op(l, r); } void update(int i, T v) { i += n; dat[i] = v; while(i >>= 1) { dat[i] = Monoid::op(dat[i*2], dat[i*2+1]); } } friend ostream &operator <<(ostream& out,const segtree<Monoid>& seg){ out << "---------------------" << endl; int cnt = 1; for(int i=1; i<=seg.n; i*=2) { REP(j, i) { out << seg.dat[cnt] << " "; cnt++; } out << endl; } out << "---------------------" << endl; return out; } }; template<typename Tp> struct sum_monoid { using T = Tp; static constexpr Tp id() { return 0; } static Tp op(const Tp &a, const Tp &b) { return a+b; } }; template <typename Monoid> struct lazysegtree { using T = typename Monoid::T; using E = typename Monoid::E; int n, height; vector<T> dat; vector<E> lazy; lazysegtree() {} lazysegtree(int n_) { n = 1, height = 0; while(n < n_) { n *= 2; height++; } dat.assign(n*2, Monoid::dt()); lazy.assign(n*2, Monoid::de()); } void build(vector<T> v) { REP(i, v.size()) dat[i+n] = v[i]; for(int i=n-1; i>0; --i) dat[i] = Monoid::f(dat[i*2], dat[i*2+1]); } inline T reflect(int k) { return lazy[k]==Monoid::de()?dat[k]:Monoid::g(dat[k], lazy[k]); } inline void eval(int k) { if(lazy[k] == Monoid::de()) return; lazy[2*k] = Monoid::h(lazy[k*2], lazy[k]); lazy[2*k+1] = Monoid::h(lazy[k*2+1], lazy[k]); dat[k] = reflect(k); lazy[k] = Monoid::de(); } inline void thrust(int k) { for(int i=height;i;--i) eval(k>>i); } inline void recalc(int k) { while(k>>=1) dat[k] = Monoid::f(reflect(k*2), reflect(k*2+1)); } void update(int a, int b, E x) { thrust(a+=n); thrust(b+=n-1); for(int l=a, r=b+1; l<r; l>>=1,r>>=1) { if(l&1) lazy[l] = Monoid::h(lazy[l], x), ++l; if(r&1) --r, lazy[r] = Monoid::h(lazy[r], x); } recalc(a); recalc(b); } T query(int a, int b) { thrust(a+=n); thrust(b+=n-1); T vl=Monoid::dt(), vr=Monoid::dt(); for(int l=a, r=b+1; l<r; l>>=1,r>>=1) { if(l&1) vl=Monoid::f(vl, reflect(l++)); if(r&1) vr=Monoid::f(reflect(--r), vr); } return Monoid::f(vl, vr); } friend ostream &operator <<(ostream& out,const lazysegtree<Monoid>& seg) { out << "---------------------" << endl; int cnt = 1; for(int i=1; i<=seg.n; i*=2) { REP(j, i) { out << "(" << seg.dat[cnt] << "," << seg.lazy[cnt] << ") "; cnt++; } out << endl; } out << "---------------------" << endl; return out; } }; struct node { ll sum, max, min, len; node() : sum(0), max(-LLINF), min(LLINF), len(0) {} node(ll a, ll b, ll c, ll d) : sum(a), max(b), min(c), len(d) {} }; struct linear_exp { using T = node; using E = PII; static T dt() { return node(); } static constexpr E de() { return PII(1, 0); } static T f(const T &a, const T &b) { node ret; ret.sum = a.sum + b.sum; ret.min = min(a.min, b.min); ret.max = max(a.max, b.max); ret.len = a.len + b.len; return ret; } static T g(const T &a, const E &b) { node ret; ret.sum = b.first*a.sum+b.second*a.len; ret.min = b.first*a.min+b.second; ret.max = b.first*a.max+b.second; ret.len = a.len; return ret; } static E h(const E &a, const E &b) { return PII(b.first*a.first, b.first*a.second+b.second); } }; signed main(void) { cin.tie(0); ios::sync_with_stdio(false); ll n, q; cin >> n >> q; vector<ll> a(n); REP(i, n) cin >> a[i]; vector<ll> b(n-1); REP(i, n-1) b[i] = a[i]!=a[i+1]; segtree<sum_monoid<ll>> seg(n-1); seg.build(b); // cout << seg << endl; lazysegtree<linear_exp> seg2(n); vector<node> va(n); REP(i, n) va[i] = node(a[i], a[i], a[i], 1); seg2.build(va); while(q--) { ll t; cin >> t; if(t == 1) { ll l, r, x; cin >> l >> r >> x; l--, r--; seg2.update(l, r+1, PII(1, x)); if(l>=1) { if(seg2.query(l-1, l).sum == seg2.query(l, l+1).sum) { seg.update(l-1, 0); } else { seg.update(l-1, 1); } } if(r+1<n) { if(seg2.query(r, r+1).sum == seg2.query(r+1, r+2).sum) { seg.update(r, 0); } else { seg.update(r, 1); } } } else { ll l, r; cin >> l >> r; l--, r--; cout << seg.query(l, r)+1 << endl; } // cout << seg << endl; } return 0; }