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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#172503 | #7108. Couleur | supepapupu | AC ✓ | 3052ms | 43720kb | C++17 | 4.0kb | 2023-09-09 19:31:59 | 2023-09-09 19:31:59 |
Judging History
answer
#include <bits/stdc++.h>
#define el '\n'
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
const int N = 1e5 + 10, MAXP = 20;
class Plane {
vector<int> q[N];
struct Node {
int lc, rc;
ll v;
}tr[N * (4 + MAXP)];
int n, idx, root[N];
void pushup(int u) {
tr[u].v = tr[tr[u].lc].v + tr[tr[u].rc].v;
}
int build_tree(int l, int r) {
int p = ++idx;
if (l == r) return p;
int mid = l + r >> 1;
tr[p].lc = build_tree(l, mid), tr[p].rc = build_tree(mid + 1, r);
return p;
}
int update(int p, int l, int r, int x, int v) {
int q = ++idx;
tr[q] = tr[p];
if (l == r) {
tr[q].v += v;
return q;
}
int mid = l + r >> 1;
if (x <= mid) tr[q].lc = update(tr[p].lc, l, mid, x, v);
else tr[q].rc = update(tr[p].rc, mid + 1, r, x, v);
pushup(q);
return q;
}
ll query(int p, int l, int r, int ql, int qr) {
if (l >= ql && r <= qr) return tr[p].v;
int mid = l + r >> 1;
ll res = 0;
if (ql <= mid) res = query(tr[p].lc, l, mid, ql, qr);
if (qr > mid) res += query(tr[p].rc, mid + 1, r, ql, qr);
return res;
}
public:
void clear(int n) {
memset(tr, 0, (idx + 5) * sizeof(Node));
memset(root, 0, (n + 5) * sizeof(int));
idx = 0;
this->n = n;
for (int i = 1; i <= n; ++i) q[i].clear();
}
void add_point(int x, int y) {
q[y].push_back(x);
}
void build() {
root[0] = build_tree(1, n);
for (int i = 1; i <= n; ++i) {
root[i] = root[i - 1];
for (auto x: q[i]) root[i] = update(root[i], 1, n, x, 1);
}
}
ll get_sum(int L, int R, int D, int U) {
return query(root[U], 1, n, L, R) - query(root[D - 1], 1, n, L, R);
}
}plane;
struct Node {
int l, r;
mutable ll v;
bool operator<(const Node &t) const{
return l < t.l;
}
};
set<Node> odt;
void solve() {
int n;
cin >> n;
plane.clear(n + 1);
vector<int> a(n + 1);
for (int i = 1; i <= n; ++i) {
cin >> a[i];
plane.add_point(i, a[i]);
}
ll ans = 0;
plane.build();
for (int i = 1; i <= n; ++i)
ans += plane.get_sum(1, i, a[i] + 1, n + 1);
cout << ans << ' ';
multiset<ll> vals;
odt.clear();
odt.insert({1, n, ans});
vals.insert(ans);
auto wk = [&](int k) {
ll res = 0;
auto it = --odt.upper_bound({k});
ll l = it->l, r = it->r, inv = it->v;
odt.erase(it), vals.erase(vals.find(inv));
inv -= plane.get_sum(l, k, a[k] + 1, n + 1);
inv -= plane.get_sum(k, r, 0, a[k] - 1);
if (l == r) return;
if (k - l <= r - k) {
ll invl = 0, invlr = 0, invr = 0;
for (int i = l; i < k; ++i) {
invl += plane.get_sum(l, i, a[i] + 1, n + 1);
invlr += plane.get_sum(k + 1, r, 0, a[i] - 1);
}
invr = inv - invl - invlr;
if (k > l) odt.insert({l, k - 1, invl}), vals.insert(invl);
odt.insert({k + 1, r, invr}), vals.insert(invr);
} else {
ll invl = 0, invlr = 0, invr = 0;
for (int i = k + 1; i <= r; ++i) {
invr += plane.get_sum(k + 1, i, a[i] + 1, n + 1);
invlr += plane.get_sum(l, k - 1, a[i] + 1, n + 1);
}
invl = inv - invr - invlr;
if (k < r) odt.insert({k + 1, r, invr}), vals.insert(invr);
odt.insert({l, k - 1, invl}), vals.insert(invl);
}
};
for (int i = 1; i <= n; ++i) {
ll k; cin >> k;
if (i == n) break;
k = k ^ ans;
wk(k);
ans = *vals.rbegin();
cout << ans << ' ';
}
cout << el;
}
int main() {
ios::sync_with_stdio(0); cin.tie(0);
int tcase;
cin >> tcase;
while (tcase--) solve();
}
这程序好像有点Bug,我给组数据试试?
詳細信息
Test #1:
score: 100
Accepted
time: 2ms
memory: 6828kb
input:
3 5 4 3 1 1 1 5 4 5 3 1 10 9 7 1 4 7 8 5 7 4 8 21 8 15 5 9 2 4 5 10 6 15 4 8 8 1 12 1 10 14 7 14 2 9 13 10 3 37 19 23 15 7 2 10 15 2 13 4 5 8 7 10
output:
7 0 0 0 0 20 11 7 2 0 0 0 0 0 0 42 31 21 14 14 4 1 1 1 0 0 0 0 0 0
result:
ok 3 lines
Test #2:
score: 0
Accepted
time: 3052ms
memory: 43720kb
input:
11116 10 10 5 10 3 6 4 8 5 9 8 31 27 24 11 12 3 0 2 3 1 10 8 2 7 2 8 10 1 10 9 10 6 5 2 13 2 1 0 1 3 1 10 7 10 7 6 1 3 10 6 7 9 21 18 10 1 6 5 4 8 9 10 10 2 10 4 8 8 5 7 2 6 7 20 10 9 1 15 0 4 2 9 7 10 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 10 1 2 3 4 5 6 7 8 9 10 6 3 5 2 7 10 9 1 4 8 10 1 10 1 3...
output:
21 18 16 12 10 6 4 1 1 0 12 12 10 10 4 4 4 2 1 0 20 16 9 5 3 3 3 0 0 0 22 14 8 8 5 5 2 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 19 12 7 4 4 2 2 1 0 0 20 18 8 3 1 1 0 0 0 0 45 21 21 10 3 3 3 0 0 0 17 11 8 2 1 1 1 0 0 0 13 4 1 0 0 0 0 0 0 0 29 27 22 15 9 7 4 3 1 0 26 16 9 2 1 1 1 1 1 ...
result:
ok 11116 lines
Extra Test:
score: 0
Extra Test Passed