結果

問題 No.2333 Slime Structure
ユーザー tokusakurai
提出日時 2023-05-28 15:14:10
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 157 ms / 3,000 ms
コード長 8,718 bytes
コンパイル時間 1,974 ms
コンパイル使用メモリ 211,308 KB
最終ジャッジ日時 2025-02-13 12:46:01
ジャッジサーバーID
(参考情報)
judge5 / judge1
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 2
other AC * 31
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (n); i++)
#define per(i, n) for (int i = (n)-1; i >= 0; i--)
#define rep2(i, l, r) for (int i = (l); i < (r); i++)
#define per2(i, l, r) for (int i = (r)-1; i >= (l); i--)
#define each(e, v) for (auto &e : v)
#define MM << " " <<
#define pb push_back
#define eb emplace_back
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define sz(x) (int)x.size()
using ll = long long;
using pii = pair<int, int>;
using pil = pair<int, ll>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;
template <typename T>
using minheap = priority_queue<T, vector<T>, greater<T>>;
template <typename T>
using maxheap = priority_queue<T>;
template <typename T>
bool chmax(T &x, const T &y) {
return (x < y) ? (x = y, true) : false;
}
template <typename T>
bool chmin(T &x, const T &y) {
return (x > y) ? (x = y, true) : false;
}
template <typename T>
int flg(T x, int i) {
return (x >> i) & 1;
}
int popcount(int x) { return __builtin_popcount(x); }
int popcount(ll x) { return __builtin_popcountll(x); }
int topbit(int x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); }
int topbit(ll x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); }
int botbit(int x) { return (x == 0 ? -1 : __builtin_ctz(x)); }
int botbit(ll x) { return (x == 0 ? -1 : __builtin_ctzll(x)); }
template <typename T>
void print(const vector<T> &v, T x = 0) {
int n = v.size();
for (int i = 0; i < n; i++) cout << v[i] + x << (i == n - 1 ? '\n' : ' ');
if (v.empty()) cout << '\n';
}
template <typename T>
void printn(const vector<T> &v, T x = 0) {
int n = v.size();
for (int i = 0; i < n; i++) cout << v[i] + x << '\n';
}
template <typename T>
int lb(const vector<T> &v, T x) {
return lower_bound(begin(v), end(v), x) - begin(v);
}
template <typename T>
int ub(const vector<T> &v, T x) {
return upper_bound(begin(v), end(v), x) - begin(v);
}
template <typename T>
void rearrange(vector<T> &v) {
sort(begin(v), end(v));
v.erase(unique(begin(v), end(v)), end(v));
}
template <typename T>
vector<int> id_sort(const vector<T> &v, bool greater = false) {
int n = v.size();
vector<int> ret(n);
iota(begin(ret), end(ret), 0);
sort(begin(ret), end(ret), [&](int i, int j) { return greater ? v[i] > v[j] : v[i] < v[j]; });
return ret;
}
template <typename T>
void reorder(vector<T> &a, const vector<int> &ord) {
int n = a.size();
vector<T> b(n);
for (int i = 0; i < n; i++) b[i] = a[ord[i]];
swap(a, b);
}
template <typename T>
T floor(T x, T y) {
assert(y != 0);
if (y < 0) x = -x, y = -y;
return (x >= 0 ? x / y : (x - y + 1) / y);
}
template <typename T>
T ceil(T x, T y) {
assert(y != 0);
if (y < 0) x = -x, y = -y;
return (x >= 0 ? (x + y - 1) / y : x / y);
}
template <typename S, typename T>
pair<S, T> operator+(const pair<S, T> &p, const pair<S, T> &q) {
return make_pair(p.first + q.first, p.second + q.second);
}
template <typename S, typename T>
pair<S, T> operator-(const pair<S, T> &p, const pair<S, T> &q) {
return make_pair(p.first - q.first, p.second - q.second);
}
template <typename S, typename T>
istream &operator>>(istream &is, pair<S, T> &p) {
S a;
T b;
is >> a >> b;
p = make_pair(a, b);
return is;
}
template <typename S, typename T>
ostream &operator<<(ostream &os, const pair<S, T> &p) {
return os << p.first << ' ' << p.second;
}
struct io_setup {
io_setup() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cout << fixed << setprecision(15);
}
} io_setup;
constexpr int inf = (1 << 30) - 1;
constexpr ll INF = (1LL << 60) - 1;
// constexpr int MOD = 1000000007;
constexpr int MOD = 998244353;
template <typename Monoid>
struct Segment_Tree {
using M = typename Monoid::V;
int n, m;
vector<M> seg;
// f(f(a,b),c) = f(a,f(b,c)), f(e1,a) = f(a,e1) = a
Segment_Tree(const vector<M> &v) : n(v.size()) {
m = 1;
while (m < n) m <<= 1;
seg.assign(2 * m, Monoid::id);
copy(begin(v), end(v), begin(seg) + m);
build();
}
Segment_Tree(int n, M x = Monoid::id) : Segment_Tree(vector<M>(n, x)) {}
void set(int i, const M &x) { seg[m + i] = x; }
void build() {
for (int i = m - 1; i > 0; i--) seg[i] = Monoid::merge(seg[2 * i], seg[2 * i + 1]);
}
void update(int i, const M &x, bool apply = false) {
seg[i + m] = apply ? Monoid::merge(seg[i + m], x) : x;
i += m;
while (i >>= 1) seg[i] = Monoid::merge(seg[2 * i], seg[2 * i + 1]);
}
M query(int l, int r) const {
l = max(l, 0), r = min(r, n);
M L = Monoid::id, R = Monoid::id;
l += m, r += m;
while (l < r) {
if (l & 1) L = Monoid::merge(L, seg[l++]);
if (r & 1) R = Monoid::merge(seg[--r], R);
l >>= 1, r >>= 1;
}
return Monoid::merge(L, R);
}
M operator[](int i) const { return seg[m + i]; }
template <typename C>
int find_subtree(int i, const C &check, M &x, int type) const {
while (i < m) {
M nxt = type ? Monoid::merge(seg[2 * i + type], x) : Monoid::merge(x, seg[2 * i + type]);
if (check(nxt)) {
i = 2 * i + type;
} else {
x = nxt;
i = 2 * i + (type ^ 1);
}
}
return i - m;
}
// check( [l,r] ) r ( n)
template <typename C>
int find_first(int l, const C &check) const {
M L = Monoid::id;
int a = l + m, b = 2 * m;
while (a < b) {
if (a & 1) {
M nxt = Monoid::merge(L, seg[a]);
if (check(nxt)) return find_subtree(a, check, L, 0);
L = nxt;
a++;
}
a >>= 1, b >>= 1;
}
return n;
}
// check(( [l,r) )) l ( -1)
template <typename C>
int find_last(int r, const C &check) const {
M R = Monoid::id;
int a = m, b = r + m;
while (a < b) {
if ((b & 1) || a == 1) {
M nxt = Monoid::merge(seg[--b], R);
if (check(nxt)) return find_subtree(b, check, R, 1);
R = nxt;
}
a >>= 1, b >>= 1;
}
return -1;
}
};
struct Data_1 {
ll l, r, ma, sum;
constexpr Data_1() : l(-INF), r(-INF), ma(-INF), sum(0) {}
Data_1(ll x, ll t) {
if (x >= 0) {
l = r = ma = x * t;
sum = x * t;
} else {
l = r = ma = x;
sum = x * t;
}
}
};
struct Monoid_1 {
using V = Data_1;
static V merge(V a, V b) {
if (a.l == -INF) return b;
if (b.l == -INF) return a;
V c;
c.l = max(a.l, a.sum + b.l);
c.r = max(b.r, a.r + b.sum);
c.sum = a.sum + b.sum;
c.ma = max({a.ma, b.ma, a.r + b.l});
return c;
}
static const V id;
};
constexpr Monoid_1::V Monoid_1::id = Data_1();
struct Func_1 {
constexpr Func_1() {}
};
struct Operator_1 {
using V = Func_1;
static V merge(V a, V b) { return a; }
static const V id;
};
constexpr Operator_1::V Operator_1::id = Func_1();
struct Acted_Monoid_1 {
using Monoid = Monoid_1;
using Operator = Operator_1;
using M = typename Monoid::V;
using O = typename Operator::V;
static M merge(M a, O b) { return a; }
};
void solve() {
int N;
cin >> N;
vector<ll> a(N), b(N);
rep(i, N) cin >> a[i] >> b[i];
vector<ll> xs;
xs.eb(0);
ll s = 0;
rep(i, N) {
s += b[i];
xs.eb(s);
}
int Q;
cin >> Q;
vector<ll> t(Q), x(Q), y(Q);
rep(i, Q) {
cin >> t[i] >> x[i] >> y[i];
if (t[i] == 1) {
x[i]--;
xs.eb(x[i]), xs.eb(x[i] + 1);
} else {
x[i]--;
xs.eb(x[i]), xs.eb(y[i]);
}
}
rearrange(xs);
int K = sz(xs);
Segment_Tree<Monoid_1> seg(K - 1);
s = 0;
int p = 0;
rep(i, N) {
while (xs[p] < s + b[i]) {
seg.set(p, Data_1(a[i], xs[p + 1] - xs[p]));
p++;
}
s += b[i];
}
seg.build();
rep(i, Q) {
if (t[i] == 1) {
int t = lb(xs, x[i]);
seg.update(t, Data_1(y[i], 1));
} else {
int L = lb(xs, x[i]), R = lb(xs, y[i]);
cout << seg.query(L, R).ma << '\n';
}
}
}
int main() {
int T = 1;
// cin >> T;
while (T--) solve();
}
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