結果
| 問題 |
No.877 Range ReLU Query
|
| コンテスト | |
| ユーザー |
ngtkana
|
| 提出日時 | 2019-09-09 11:56:49 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 242 ms / 2,000 ms |
| コード長 | 4,420 bytes |
| コンパイル時間 | 2,798 ms |
| コンパイル使用メモリ | 223,968 KB |
| 最終ジャッジ日時 | 2025-01-07 17:32:04 |
|
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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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 <bits/stdc++.h>
#define loop(n) for (int ngtkana_is_genius = 0; ngtkana_is_genius < int(n); ngtkana_is_genius++)
#define rep(i, begin, end) for(int i = int(begin); i < int(end); i++)
#define all(v) v.begin(), v.end()
#define lint long long
auto cmn = [](auto& a, auto b){if (a > b) {a = b; return true;} return false;};
auto cmx = [](auto& a, auto b){if (a < b) {a = b; return true;} return false;};
void debug_impl() { std::cerr << std::endl; }
template <typename Head, typename... Tail>
void debug_impl(Head head, Tail... tail){
std::cerr << " " << head;
debug_impl(tail...);
}
#define debug(...)\
std::cerr << std::boolalpha << "[" << #__VA_ARGS__ << "]:";\
debug_impl(__VA_ARGS__);\
std::cerr << std::noboolalpha;
template<typename Value, typename BinaryOp>
class segment_tree {
int sz, n, N;
BinaryOp op;
Value id;
std::vector<Value> table;
auto& op_eq(Value& x, Value y) const { return x = op(x, y); }
void merge(int u)
{ table.at(u) = op(table.at(2 * u), table.at(2 * u + 1)); }
Value query_impl(int l, int r, int k, int L, int R) const {
return l <= L && R <= r
? table.at(k)
: R <= l || r <= L
? id
: op(
query_impl(l, r, 2 * k, L, (L + R) / 2),
query_impl(l, r, 2 * k + 1, (L + R) / 2, R)
);
}
public:
segment_tree(int sz, BinaryOp op, Value id):
sz (sz),
n (std::pow(2, int(std::log2(2 * sz - 1)))),
N (n * 2),
op (op),
id (id),
table (N, id)
{}
auto& at(int i) { return table.at(n + i); }
auto& at(int i) const { return table.at(n + i); }
auto collect() const {
auto ret = std::vector<Value>(sz);
for (auto i = 0; i < sz; i++)
{ ret.at(i) = at(i); }
return ret;
}
auto query(int l, int r) const
{ return query_impl(l, r, 1, 0, n); }
void build_oneline(int i)
{ for (i += n, i /= 2; i > 0; i /= 2) merge(i); }
void build()
{ for (auto i = 1; i < n; i++) merge(i); }
void update (int u, Value val) {
at(u) = val;
build_oneline(u);
}
void add (int u, Value val) {
at(u) += val;
build_oneline(u);
}
};
template<typename Value, typename BinaryOp>
auto make_segment_tree(int sz, BinaryOp op, Value id)
{ return segment_tree<Value, BinaryOp>(sz, std::move(op), id); }
template <typename T>
std::istream& operator>> (std::istream& is, std::vector<T>& v) {
for (auto & x : v) is >> x;
return is;
}
template <typename T>
std::ostream& operator<< (std::ostream& os, const std::vector<T>& v) {
auto n = v.size();
os << "{";
for (size_t i = 0; i < n; i++)
{os << (i > 0 ? "," : "") << v.at(i);}
return os << "}";
}
template <typename T, typename U>
std::ostream& operator<< (std::ostream& os, const std::pair<T, U>& pair)
{ return os << "(" << pair.first << "," << pair.second << ")"; }
template <typename T, typename U>
std::istream& operator>> (std::iostream& is, std::pair<T, U>& pair)
{ return is >> pair.first >> pair.second; }
int main() {
std::cin.tie(0); std::cin.sync_with_stdio(false);
int n, q; std::cin >> n >> q;
auto tree = make_segment_tree(
n,
[](auto x, auto y){ return std::make_pair(x.first + y.first, x.second + y.second); },
std::make_pair(0LL, 0)
);
std::vector<std::pair<int, int>> pairs;
rep(i, 0, n) {
int x; std::cin >> x;
pairs.emplace_back(std::make_pair(x, i));
}
std::sort(all(pairs));
std::reverse(all(pairs));
std::vector<std::tuple<int, int, int, int>> queries;
rep(i, 0, q) {
int c, l, r, x;
std::cin >> c >> l >> r >> x;
queries.emplace_back(std::make_tuple(x, l, r, i));
}
std::sort(all(queries));
std::reverse(all(queries));
std::vector<std::pair<int, lint>> answers;
auto it = pairs.begin();
for (auto query : queries) {
int x, l, r, i; std::tie(x, l, r, i) = query;
l--;
// debug(x, l, r, i);
for (; it != pairs.end(); it++) {
int y, j; std::tie(y, j) = *it;
if (y <= x) break;
tree.update(j, std::make_pair(y, 1));
}
// debug(tree.collect());
lint sum, len; std::tie(sum, len) = tree.query(l, r);
auto ret = sum - len * x;
answers.emplace_back(i, ret);
}
std::sort(all(answers));
for (auto pair : answers)
{ std::cout << pair.second << std::endl; }
return 0;
}
ngtkana