結果
| 問題 |
No.3303 Heal Slimes 2
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2025-07-09 05:47:00 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 1,080 ms / 4,000 ms |
| コード長 | 5,981 bytes |
| コンパイル時間 | 1,874 ms |
| コンパイル使用メモリ | 208,084 KB |
| 実行使用メモリ | 13,568 KB |
| 最終ジャッジ日時 | 2025-10-21 10:21:11 |
| 合計ジャッジ時間 | 20,764 ms |
|
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 |
|---|---|
| other | AC * 32 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
template <typename S, typename T, T (*op)(T, T), T(*e)()>
struct DynamicSegTree{
DynamicSegTree(S n) : n(n), root(nullptr) {}
private:
struct node;
using node_ptr = std::unique_ptr<node>;
struct node{
S index;
T value, product;
node_ptr left, right;
node(S index, T value)
: index(index),
value(value),
product(value),
left(nullptr),
right(nullptr) {}
void refresh() {
product = op(op(left ? left->product : e(), value), right ? right->product : e());
}
};
const S n;
node_ptr root;
void update(node_ptr& t, S a, S b, S i, T x) const {
if(!t){
t = std::make_unique<node>(i, x);
return;
}
if(t->index == i){
t->value = x;
t->refresh();
return;
}
S c = (a + b) >> 1;
if(i < c){
if(t->index < i) std::swap(t->index, i), std::swap(t->value, x);
update(t->left, a, c, i, x);
} else {
if(i < t->index) std::swap(i, t->index), std::swap(x, t->value);
update(t->right, c, b, i, x);
}
t->refresh();
}
T get(const node_ptr& t, S a, S b, S i) const {
if(!t) return e();
if(t->index == i) return t->value;
S c = (a + b) >> 1;
if(i < c) return get(t->left, a, c, i);
else return get(t->right, c, b, i);
}
T query(const node_ptr& t, S a, S b, S l, S r) const {
if(!t || b <= l || r <= a) return e();
if(l <= a && b <= r) return t->product;
S c = (a + b) >> 1;
T result = query(t->left, a, c, l, r);
if(l <= t->index && t->index < r) result = op(result, t->value);
return op(result, query(t->right, c, b, l, r));
}
void reset(node_ptr& t, S a, S b, S l, S r) const {
if(!t || b <= l || r <= a) return;
if(l <= a && b <= r){
t.reset();
return;
}
S c = (a + b) >> 1;
reset(t->left, a, c, l, r);
reset(t->right, c, b, l, r);
t->refresh();
}
template <class F>
S max_right(const node_ptr& t, S a, S b, S l, const F& f, T& product) const {
if(!t || b <= l) return n;
if(f(op(product, t->product))){
product = op(product, t->product);
return n;
}
S c = (a + b) >> 1;
S result = max_right(t->left, a, c, l, f, product);
if(result != n) return result;
if(l <= t->index) {
product = op(product, t->value);
if(!f(product)) return t->index;
}
return max_right(t->right, c, b, l, f, product);
}
template <class F>
S min_left(const node_ptr& t, S a, S b, S r, const F& f, T& product) const {
if(!t || r <= a) return 0;
if(f(op(t->product, product))){
product = op(t->product, product);
return 0;
}
S c = (a + b) >> 1;
S result = min_left(t->right, c, b, r, f, product);
if(result != 0) return result;
if(t->index < r){
product = op(t->value, product);
if(!f(product)) return t->index + 1;
}
return min_left(t->left, a, c, r, f, product);
}
public:
void update(S i, T x) {
assert(i < n);
update(root, 0, n, i, x);
}
T get(S i) const {
assert(i < n);
return get(root, 0, n, i);
}
T query(S l, S r) const {
assert(l <= r && r <= n);
return query(root, 0, n, l, r);
}
T all_query() const {
return root ? root->product : e();
}
void reset(S l, S r) {
assert(l <= r && r <= n);
return reset(root, 0, n, l, r);
}
template <bool (*f)(T)>
S max_right(S l) const {
return max_right(l, [](T x) { return f(x); });
}
template <class F>
S max_right(S l, const F& f) const {
assert(l <= n);
T product = e();
assert(f(product));
return max_right(root, 0, n, l, f, product);
}
template <bool (*f)(T)>
S min_left(S r) const {
return min_left(r, [](T x) { return f(x); });
}
template <class F>
S min_left(S r, const F& f) const {
assert(r <= n);
T product = e();
assert(f(product));
return min_left(root, 0, n, r, f, product);
}
};
long long op(long long a, long long b){
return a + b;
}
long long e(){
return 0LL;
}
const long long INF = 1LL << 60;
int main(){
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n, k; cin >> n >> k;
long long d; cin >> d;
vector<long long> h(n);
for(int i = 0; i < n; i++){
cin >> h[i];
}
long long maxval = 1e9, siz = 3e9;
DynamicSegTree<long long, long long, op, e> cnt(siz), val(siz);
for(int i = 0; i < k - 1; i++){
cnt.update(h[i], cnt.get(h[i]) + 1);
val.update(h[i], val.get(h[i]) + h[i]);
}
long long ans = INF;
auto f = [&](long long x){
long long res = 0;
res += cnt.query(0, x + 1) * x - val.query(0, x + 1);
res += val.query(x + d, siz) - cnt.query(x + d, siz) * (x + d);
return res;
};
for(int i = k - 1; i < n; i++){
cnt.update(h[i], cnt.get(h[i]) + 1);
val.update(h[i], val.get(h[i]) + h[i]);
int ok = 0, ng = maxval + 1;
while(abs(ok - ng) > 1){
int mid = (ok + ng) / 2;
if(cnt.query(mid + d, siz) - cnt.query(0, mid + 1) >= 0){
ok = mid;
} else {
ng = mid;
}
}
ans = min(ans, f(ok));
ans = min(ans, f(ok + 1));
cnt.update(h[i - k + 1], cnt.get(h[i - k + 1]) - 1);
val.update(h[i - k + 1], val.get(h[i - k + 1]) - h[i - k + 1]);
}
cout << ans << endl;
return 0;
}