結果
| 問題 |
No.2333 Slime Structure
|
| コンテスト | |
| ユーザー |
Kude
|
| 提出日時 | 2023-05-28 15:53:14 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 4,040 bytes |
| コンパイル時間 | 2,941 ms |
| コンパイル使用メモリ | 237,372 KB |
| 最終ジャッジ日時 | 2025-02-13 14:23:00 |
|
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 1 WA * 22 RE * 8 |
ソースコード
#include<bits/stdc++.h>
namespace {
#pragma GCC diagnostic ignored "-Wunused-function"
#include<atcoder/all>
#pragma GCC diagnostic warning "-Wunused-function"
using namespace std;
using namespace atcoder;
#define rep(i,n) for(int i = 0; i < (int)(n); i++)
#define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--)
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; }
template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; }
using ll = long long;
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<ll>;
using VVL = vector<VL>;
template<class T, T (*add)(T, T), T (*zero)(), T (*mul)(T, T), T (*one)(), int N>
struct Mat : array<array<T, N>, N> {
using M = Mat<T, add, zero, mul, one, N>;
void make_identity() {
for (int i = 0; i < N; i++) {
for (int j = 0; j < N; j++) {
(*this)[i][j] = zero();
}
}
for (int i = 0; i < N; i++) {
(*this)[i][i] = one();
}
}
M& operator+=(const M& rhs) {
for (int i = 0; i < N; i++) {
for (int j = 0; j < N; j++) {
(*this)[i][j] = add((*this)[i][j], rhs[i][j]);
}
}
return *this;
}
M& operator*=(const M& rhs) {
static M temp;
for (int i = 0; i < N; i++) {
for (int j = 0; j < N; j++) {
temp[i][j] = zero();
}
}
for (int i = 0; i < N; i++) {
for (int j = 0; j < N; j++) {
for (int k = 0; k < N; k++) {
temp[i][k] = add(temp[i][k], mul((*this)[i][j], rhs[j][k]));
}
}
}
*this = temp;
return *this;
}
template <class I>
void inplace_pow(I k) {
assert(k >= 0);
static M temp;
temp = *this;
make_identity();
while (k) {
if (k & 1) *this *= temp;
k >>= 1;
if (k) temp *= temp;
}
}
friend ostream& operator<<(ostream& os, const M& A) {
for (int i = 0; i < N; i++) {
for (int j = 0; j < N; j++) {
os << A[i][j] << " \n"[j + 1 == N];
}
}
return os;
}
};
// tropical semiring
constexpr ll INF = 1002003004005006007;
ll add(ll x, ll y) { return max(x, y); }
ll zero() { return -INF; }
ll mul(ll x, ll y) { return x + y; }
ll one() { return 0; }
using S = Mat<ll, add, zero, mul, one, 3>;
S op(S x, S y) {
x *= y;
return x;
}
S e() {
S t;
t.make_identity();
return t;
}
} int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int n;
cin >> n;
VL cuts{0};
vector<P> ab(n);
{
ll now = 0;
for(auto& [a, b] : ab) {
cin >> a >> b;
now += b;
cuts.emplace_back(now);
}
}
int q;
cin >> q;
vector<tuple<int, int, int>> queries(q);
for(auto& [t, x, y] : queries) {
cin >> t >> x >> y;
if (t == 1) {
x--;
cuts.emplace_back(x);
cuts.emplace_back(x + 1);
} else {
x--;
cuts.emplace_back(x);
cuts.emplace_back(y);
}
}
sort(all(cuts));
cuts.erase(unique(all(cuts)), cuts.end());
int sz = int(cuts.size()) - 1;
vector<S> init(sz);
{
int ptr = 0;
ll now = 0;
for(auto [a, b] : ab) {
S t;
t[0] = {a, zero(), a};
t[1] = {a, one(), a};
t[2] = {zero(), zero(), one()};
ll nxt = now + b;
while(cuts[ptr] != nxt) {
ll k = cuts[ptr + 1] - cuts[ptr];
S tk = t;
tk.inplace_pow(k);
init[ptr] = tk;
ptr++;
}
now = nxt;
}
}
segtree<S, op, e> seg(init);
// rep(i, sz + 1) cout << cuts[i] << " \n"[i + 1 == sz + 1];
for(auto [t, x, y] : queries) {
if (t == 1) {
int i = lower_bound(all(cuts), x) - cuts.begin();
S t;
t[0] = {y, zero(), y};
t[1] = {y, one(), y};
t[2] = {zero(), zero(), one()};
seg.set(i, t);
} else {
int l = lower_bound(all(cuts), x) - cuts.begin(), r = lower_bound(all(cuts), y) - cuts.begin();
auto t = seg.prod(l, r);
cout << t[1][2] << '\n';
}
}
}
Kude