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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 |
---|---|---|---|---|---|---|---|---|---|
#163134 | #7108. Couleur | ucup-team296 | AC ✓ | 1181ms | 24084kb | C++20 | 4.7kb | 2023-09-03 21:14:22 | 2023-09-03 21:14:23 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "../../debug.h"
#else
#define dbg(...) 787788
#endif
struct Fenwick {
vector<int> a;
Fenwick(int n) {
a.resize(n);
}
Fenwick() = default;
int sum(int pos) {
int r = 0;
while (pos >= 0) {
r += a[pos];
pos = (pos & (pos + 1)) - 1;
}
return r;
}
void inc(int pos, int val) {
while (pos < (int)a.size()) {
a[pos] += val;
pos |= pos + 1;
}
}
};
struct Solver {
vector<int> sorted;
vector<int> vals;
int fr, to;
long long inv{};
Fenwick f;
Solver(vector<int> vals_) : vals(vals_) {
sorted = vals;
sort(sorted.begin(), sorted.end());
sorted.erase(unique(sorted.begin(), sorted.end()), sorted.end());
f = Fenwick(sorted.size());
fr = 0;
to = vals.size() - 1;
for (int i = 0; i < (int)vals.size(); i++) {
int pos = lower_bound(sorted.begin(), sorted.end(), vals[i]) - sorted.begin();
inv += i - f.sum(pos);
f.inc(pos, 1);
}
}
void inc_fr() {
int pos = lower_bound(sorted.begin(), sorted.end(), vals[fr]) - sorted.begin();
inv -= f.sum(pos - 1);
f.inc(pos, -1);
fr++;
}
void dec_to() {
int pos = lower_bound(sorted.begin(), sorted.end(), vals[to]) - sorted.begin();
int tot = to - fr + 1;
inv -= tot - f.sum(pos);
f.inc(pos, -1);
to--;
}
};
void solve() {
int tc;
cin >> tc;
for (int t = 0; t < tc; t++) {
int n;
cin >> n;
vector<int> a(n);
for (int i = 0; i < n; i++) {
cin >> a[i];
}
vector<Solver> solvers;
vector<int> solver_ids(n, -1);
Solver base(a);
multiset<long long> all_inv;
all_inv.insert(base.inv);
solvers.push_back(std::move(base));
solver_ids[0] = 0;
set<int> solvers_pos;
solvers_pos.insert(0);
solvers_pos.insert(n);
for (int i = 0; i < n; i++) {
long long mid_p;
cin >> mid_p;
long long max_inv = *all_inv.rbegin();
cout << max_inv;
if (i + 1 < n) {
cout << ' ';
} else {
cout << '\n';
}
mid_p ^= max_inv;
mid_p -= 1;
assert(mid_p >= 0);
assert(mid_p < n);
auto it = solvers_pos.upper_bound(mid_p);
it--;
int pos = *it;
int id = solver_ids[pos];
assert(id != -1);
int len = solvers[id].to - solvers[id].fr + 1;
all_inv.erase(all_inv.find(solvers[id].inv));
int next_pos = pos + len;
int left = mid_p - pos;
int right = len - left - 1;
if (left > right) {
if (right > 0) {
vector<int> new_group(a.begin() + mid_p + 1, a.begin() + next_pos);
Solver new_solver(std::move(new_group));
all_inv.insert(new_solver.inv);
solvers.push_back(std::move(new_solver));
int new_id = solvers.size() - 1;
solver_ids[mid_p + 1] = new_id;
solvers_pos.insert(mid_p + 1);
}
if (left > 0) {
for (int ii = 0; ii < right + 1; ii++) {
solvers[id].dec_to();
}
all_inv.insert(solvers[id].inv);
}
} else {
if (left > 0) {
vector<int> new_group(a.begin() + pos, a.begin() + mid_p);
Solver new_solver(new_group);
all_inv.insert(new_solver.inv);
solvers.push_back(std::move(new_solver));
int new_id = solvers.size() - 1;
solver_ids[pos] = new_id;
}
if (right > 0) {
for (int ii = 0; ii < left + 1; ii++) {
solvers[id].inc_fr();
}
all_inv.insert(solvers[id].inv);
solver_ids[mid_p + 1] = id;
solvers_pos.insert(mid_p + 1);
}
}
}
}
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
#ifdef LOCAL
run_all_tests(solve);
// run_single_test(solve, 1);
// solve();
#else
solve();
#endif
}
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: 1ms
memory: 3548kb
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: 1181ms
memory: 24084kb
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 0 0 0 0 0 0 ...
result:
ok 11116 lines
Extra Test:
score: 0
Extra Test Passed