結果
| 問題 |
No.3367 Looks like a convolution
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2025-11-18 17:34:10 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 955 ms / 2,000 ms |
| コード長 | 6,483 bytes |
| コンパイル時間 | 3,370 ms |
| コンパイル使用メモリ | 292,252 KB |
| 実行使用メモリ | 28,488 KB |
| 最終ジャッジ日時 | 2025-11-18 17:34:31 |
| 合計ジャッジ時間 | 18,872 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 |
|---|---|
| sample | AC * 2 |
| other | AC * 33 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define vi vector<int>
#define vl vector<ll>
#define ov4(a, b, c, d, name, ...) name
#define rep3(i, a, b, c) for(ll i = (a); i < (b); i += (c))
#define rep2(i, a, b) rep3(i, a, b, 1)
#define rep1(i, n) rep2(i, 0, n)
#define rep0(n) rep1(aaaaa, n)
#define rep(...) ov4(__VA_ARGS__, rep3, rep2, rep1, rep0)(__VA_ARGS__)
#define per(i, a, b) for(ll i = (a)-1; i >= (b); i--)
#define fore(e, v) for(auto&& e : v)
#define all(a) begin(a), end(a)
#define sz(a) (int)(size(a))
#define lb(v, x) (lower_bound(all(v), x) - begin(v))
#define eb emplace_back
template<typename T, typename S> bool chmin(T& a, const S& b) { return a > b ? a = b, 1 : 0; }
template<typename T, typename S> bool chmax(T& a, const S& b) { return a < b ? a = b, 1 : 0; }
const int INF = 1e9 + 100;
const ll INFL = 3e18 + 100;
#define i128 __int128_t
struct _ {
_() { cin.tie(0)->sync_with_stdio(0), cout.tie(0); }
} __;
void debug(auto ...vs) {
((cerr << vs << " "), ...) << endl;
}
using U = uint64_t;
template<class S, S (*op)(S, S), S (*e)(), class F, S (*mpp)(F, S), F (*cmpo)(F, F), F (*id)()> struct lazy_segtree {
lazy_segtree() : lazy_segtree(0) {}
explicit lazy_segtree(int n) : lazy_segtree(vector<S>(n, e())) {}
explicit lazy_segtree(const vector<S>& v) : n(sz(v)) {
s = bit_ceil(U(n));
log = countr_zero(U(s));
d = vector<S>(2 * s, e());
lz = vector<F>(s, id());
rep(i, n) d[s + i] = v[i];
per(i, s, 1) update(i);
}
void set(int p, S x) {
p += s;
PUSH(p);
d[p] = x;
rep(i, 1, log + 1) update(p >> i);
}
S get(int p) {
p += s;
PUSH(p);
return d[p];
}
S prod(int l, int r) {
if(l == r) return e();
l += s, r += s;
per(i, log + 1, 1) {
if(((l >> i) << i) != l) push(l >> i);
if(((r >> i) << i) != r) push((r - 1) >> i);
}
S sml = e(), smr = e();
while(l < r) {
if(l & 1) sml = op(sml, d[l++]);
if(r & 1) smr = op(d[--r], smr);
l >>= 1, r >>= 1;
}
return op(sml, smr);
}
S all_prod() { return d[1]; }
void apply(int p, F f) {
// assert(0 <= p && p < n);
p += s;
PUSH(p);
d[p] = mpp(f, d[p]);
rep(i, 1, log + 1) update(p >> i);
}
void apply(int l, int r, F f) {
// assert(0 <= l && l <= r && r <= _n);
if(l == r) return;
l += s, r += s;
per(i, log + 1, 1) {
if(((l >> i) << i) != l) push(l >> i);
if(((r >> i) << i) != r) push((r - 1) >> i);
}
int ml = l, mr = r;
while(l < r) {
if(l & 1) all_apply(l++, f);
if(r & 1) all_apply(--r, f);
l >>= 1, r >>= 1;
}
l = ml, r = mr;
rep(i, 1, log + 1) {
if(((l >> i) << i) != l) update(l >> i);
if(((r >> i) << i) != r) update((r - 1) >> i);
}
}
template<class G> int max_right(int l, G g) {
assert(g(e()));
if(l == n) return n;
l += s;
PUSH(l);
S sm = e();
do {
while(~l & 1) l >>= 1;
if(!g(op(sm, d[l]))) {
while(l < s) {
push(l);
l <<= 1;
if(g(op(sm, d[l]))) {
sm = op(sm, d[l]);
l++;
}
}
return l - s;
}
sm = op(sm, d[l]);
l++;
} while((l & -l) != l);
return n;
}
template<class G> int min_left(int r, G g) {
assert(g(e()));
if(r == 0) return 0;
r += s;
PUSH(r - 1);
S sm = e();
do {
r--;
while(r > 1 && r & 1) r >>= 1;
if(!g(op(d[r], sm))) {
while(r < s) {
push(r);
r = (2 * r + 1);
if(g(op(d[r], sm))) {
sm = op(d[r], sm);
r--;
}
}
return r + 1 - s;
}
sm = op(d[r], sm);
} while((r & -r) != r);
return 0;
}
S operator[](int k) { return get(k); }
int len() { return n; }
private:
int n, s, log;
vector<S> d;
vector<F> lz;
void update(int k) { d[k] = op(d[2 * k], d[2 * k + 1]); }
void all_apply(int k, F f) {
d[k] = mpp(f, d[k]);
if(k < s) lz[k] = cmpo(f, lz[k]);
}
void push(int k) {
all_apply(2 * k, lz[k]);
all_apply(2 * k + 1, lz[k]);
lz[k] = id();
}
void PUSH(int k) { per(i, log + 1, 1) push(k >> i); }
};
struct S {
ll s;
int l;
};
S op(S x, S y) {
return {x.s + y.s, x.l + y.l};
}
S e() {
return {0, 0};
}
S mapp(ll f, S x) {
return {f * x.l + x.s, x.l};
}
ll comp(ll f, ll g) {
return f + g;
}
ll id() {
return 0;
}
void solve() {
int n;cin >> n;
vi a(n), b(n);
rep(i, n) cin >> a[i];
rep(i, n) cin >> b[i];
stack<int> ska, skb;
ska.push(-1), skb.push(-1);
lazy_segtree<S, op, e, ll, mapp, comp, id> lsta(n), lstb(n);
rep(i, n) lsta.set(i, S{0, 1});
rep(i, n) lstb.set(i, S{0, 1});
vl res(n, 0);
rep(i, n) {
while (ska.top() != -1 and a[ska.top()] >= a[i]) {
int x = ska.top();ska.pop();
lsta.apply(ska.top() + 1, x + 1, -a[x]);
}
lsta.apply(ska.top() + 1, i+1, a[i]);
while (skb.top() != -1 and b[skb.top()] >= b[i]) {
int x = skb.top();skb.pop();
lstb.apply(skb.top() + 1, x + 1, -b[x]);
}
lstb.apply(skb.top() + 1, i+1, b[i]);
ska.push(i);
skb.push(i);
int ok = i+1, ng = -1;
// a[j] > b[i-j]
// j = 0, ... i
while (abs(ng - ok) > 1) {
int mid = (ok + ng) / 2;
if (lsta.get(mid).s > lstb.get(i - mid).s) {
ok = mid;
}
else {
ng = mid;
}
}
// debug(i, ok);
res[i] = lsta.prod(0, ok).s + lstb.prod(0, i + 1 - ok).s;
// rep(i, n) {
// cerr << lsta.get(i).s << " ";
// }
// cerr << endl;
// rep(i, n) {
// cerr << lstb.get(i).s << " ";
// }
// cerr << endl;
// cerr << endl;
}
rep(i, n) {
if (i) cout << " ";
cout << res[i];
}
cout << endl;
}
int main() {
// int T;cin >> T;
int T = 1;
while(T--) {
solve();
}
}