結果
| 問題 | No.877 Range ReLU Query |
| コンテスト | |
| ユーザー |
commy
|
| 提出日時 | 2020-11-29 20:47:55 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.89.0) |
| 結果 |
AC
|
| 実行時間 | 302 ms / 2,000 ms |
| コード長 | 4,932 bytes |
| 記録 | |
| コンパイル時間 | 1,316 ms |
| コンパイル使用メモリ | 105,484 KB |
| 最終ジャッジ日時 | 2025-01-16 10:15:56 |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 20 |
ソースコード
#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <numeric>
#include <utility>
#include <tuple>
#define rep(i, a, b) for (int i = int(a); i < int(b); i++)
using namespace std;
using ll = long long int;
using P = pair<ll, ll>;
// clang-format off
#ifdef _DEBUG_
#define dump(...) do{ cerr << __LINE__ << ":\t" << #__VA_ARGS__ << " = "; PPPPP(__VA_ARGS__); cerr << endl; } while(false)
template<typename T> void PPPPP(T t) { cerr << t; }
template<typename T, typename... S> void PPPPP(T t, S... s) { cerr << t << ", "; PPPPP(s...); }
#else
#define dump(...) do{ } while(false)
#endif
template<typename T> vector<T> make_v(size_t a, T b) { return vector<T>(a, b); }
template<typename... Ts> auto make_v(size_t a, Ts... ts) { return vector<decltype(make_v(ts...))>(a, make_v(ts...)); }
template<typename T> bool chmin(T &a, T b) { if (a > b) {a = b; return true; } return false; }
template<typename T> bool chmax(T &a, T b) { if (a < b) {a = b; return true; } return false; }
template<typename T> void print(T a) { cout << a << '\n'; }
template<typename T, typename... Ts> void print(T a, Ts... ts) { cout << a << ' '; print(ts...); }
template<typename T> istream &operator,(istream &in, T &t) { return in >> t; }
// clang-format on
#include <functional>
template<typename T>
class SegmentTreeOneAll {
using Func = function<T(T, T)>;
public:
vector<T> data;
int n;
T init;
Func update_func;
Func query_func;
SegmentTreeOneAll(int _n, T _init, Func up, Func qu) {
init = _init;
update_func = up;
query_func = qu;
for (n = 1; n < _n; n *= 2)
;
data.resize(2 * n - 1, init);
}
void update(int pos, T val) {
pos += n - 1;
data[pos] = update_func(data[pos], val);
while (pos > 0) {
pos = (pos - 1) / 2;
data[pos] = query_func(data[2 * pos + 1], data[2 * pos + 2]);
}
}
T query(int l, int r) {
T resL = init, resR = init;
for (l += n - 1, r += n - 1; l < r; l = l / 2, r = (r - 1) / 2) {
if (!(l & 1)) {
resL = query_func(resL, data[l]);
}
if (!(r & 1)) {
resR = query_func(data[r - 1], resR);
}
}
return query_func(resL, resR);
}
};
template<typename T, typename E>
void compress_insert(vector<T> &inserter, pair<vector<T> &, vector<E> &> pr) {
for (T &val : pr.first) {
inserter.push_back(val);
}
}
template<typename T, typename Head, typename... Args>
void compress_insert(vector<T> &inserter, Head head, Args... args) {
compress_insert(inserter, head);
compress_insert(inserter, args...);
}
template<typename T, typename E>
void compress_update(vector<T> &inserter, pair<vector<T> &, vector<E> &> pr) {
for (unsigned int i = 0; i < pr.first.size(); i++) {
pr.second[i] = static_cast<int>(lower_bound(inserter.begin(), inserter.end(), pr.first[i]) - inserter.begin());
}
}
template<typename T, typename Head, typename... Args>
void compress_update(vector<T> &inserter, Head head, Args... args) {
compress_update(inserter, head);
compress_update(inserter, args...);
}
template<typename T, typename... Args>
size_t compress(vector<T> &inserter, Args... args) {
compress_insert(inserter, args...);
sort(inserter.begin(), inserter.end());
inserter.erase(unique(inserter.begin(), inserter.end()), inserter.end());
compress_update(inserter, args...);
return inserter.size();
}
template<typename T, typename E>
auto refer(vector<T> &a, vector<E> &b) {
return make_pair(ref(a), ref(b));
}
int main() {
cin.tie(nullptr);
ios::sync_with_stdio(false);
int n, q;
cin, n, q;
vector<ll> a(n, 0);
rep(i, 0, n) {
cin, a[i];
}
vector<ll> b(n);
vector<vector<int>> L(n), R(n);
vector<ll> x(q);
rep(i, 0, q) {
int t, l, r;
cin, t, l, r, x[i];
l--;
r--;
L[l].emplace_back(i);
R[r].emplace_back(i);
}
vector<ll> y(q);
vector<ll> mapping;
int sz = compress(mapping, refer(a, b), refer(x, y));
vector<ll> ans(q, 0LL);
auto SUM = [](ll s, ll t) {
return s + t;
};
SegmentTreeOneAll<ll> seg1(sz, 0LL, SUM, SUM), seg2(sz, 0LL, SUM, SUM);
rep(i, 0, n) {
for (auto ii : L[i]) {
int pos = y[ii];
ll cnt = seg1.query(pos, sz);
ll sum = seg2.query(pos, sz);
ans[ii] -= (sum - cnt * x[ii]);
}
{
int pos = b[i];
seg1.update(pos, 1);
seg2.update(pos, a[i]);
}
for (auto ii : R[i]) {
int pos = y[ii];
ll cnt = seg1.query(pos, sz);
ll sum = seg2.query(pos, sz);
ans[ii] += (sum - cnt * x[ii]);
}
}
rep(i, 0, q) {
print(ans[i]);
}
return 0;
}
commy