QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#76643 | #5466. Permutation Compression | 459045 | WA | 2ms | 3456kb | C++17 | 3.7kb | 2023-02-11 12:10:02 | 2023-02-11 12:10:04 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
// author : jiangly
template <typename T>
struct Fenwick {
int n;
std::vector<T> a;
Fenwick(int n = 0) {
init(n);
}
void init(int n) {
this->n = n;
a.assign(n, T());
}
void add(int x, T v) {
for (int i = x + 1; i <= n; i += i & -i) {
a[i - 1] += v;
}
}
T sum(int x) {
T ans = 0;
for (int i = x; i > 0; i -= i & -i) {
ans += a[i - 1];
}
return ans;
}
T rangeSum(int l, int r) {
return sum(r) - sum(l);
}
int kth(T k) {
int x = 0;
for (int i = 1 << std::__lg(n); i; i /= 2) {
if (x + i <= n && k >= a[x + i - 1]) {
x += i;
k -= a[x - 1];
}
}
return x;
}
};
void solve() {
int n, m, k;
cin >> n >> m >> k;
vector<int> a(n), b(m);
vector<bool> mp(n, false);
multiset<int> len;
vector<int> pos(n);
for (int i = 0; i < n; ++i) {
cin >> a[i];
--a[i];
pos[a[i]] = i;
}
for (int i = 0; i < m; ++i) {
cin >> b[i];
--b[i];
mp[b[i]] = true;
}
for (int i = 0; i < k; ++i) {
int x;
cin >> x;
len.insert(x);
}
Fenwick<i64> fen(n);
set<int> s;
// for (int i = 0; i < n; ++i) {
// if (mp[i]) {
// s.insert(pos[i]);
// }
// }
for (int i = n - 1; i >= 0; --i) {
if (mp[i]) {
s.insert(pos[i]);
} else {
if (len.empty()) {
cout << "NO\n";
return;
}
// cerr << len.size() << '\n';
// cerr << i + 1 << '\n';
if (!s.empty()) {
int l, r;
auto it = s.upper_bound(pos[i]);
if (it == s.end()) {
r = n;
it = prev(it);
l = *it;
} else {
r = *it;
if (it == s.begin()) {
l = -1;
} else {
it = prev(it);
l = *it;
}
}
int target = (r - 1) - (l + 1) + 1;
target -= fen.rangeSum(l + 1, r);
// cerr << i + 1 << ' ' << l + 1 + 1 << ' ' << r - 1 + 1 << '\n';
// cerr << target << ' ' << fen.rangeSum(l + 1, r) << '\n' << '\n';
auto it2 = len.upper_bound(target);
if (it2 == len.begin()) {
cout << "NO\n";
return;
}
it2 = prev(it2);
len.erase(it2);
} else {
int target = n;
target -= fen.rangeSum(0, n);
auto it2 = len.upper_bound(target);
// cerr << i + 1 << ' ' << target << ' ' << fen.rangeSum(0, n) << '\n';
// for (auto x : len) {
// cerr << x << ' ';
// }
// cerr << '\n' << '\n';
if (it2 == len.begin()) {
cout << "NO\n";
return;
}
it2 = prev(it2);
len.erase(it2);
}
fen.add(pos[i], 1);
}
}
cout << "YES\n";
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t;
cin >> t;
while (t--) {
solve();
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 2ms
memory: 3308kb
input:
3 5 2 3 5 1 3 2 4 5 2 1 2 4 5 5 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 3 2 2 3 1 2 3 2 2 3
output:
YES YES NO
result:
ok 3 lines
Test #2:
score: -100
Wrong Answer
time: 2ms
memory: 3456kb
input:
100 2 1 2 2 1 2 1 1 2 1 2 1 2 1 2 2 2 1 1 1 2 1 2 6 1 5 3 4 2 5 6 1 3 5 2 1 1 1 6 1 6 2 1 3 6 4 5 1 4 1 2 2 1 4 3 3 2 2 1 3 2 1 3 2 2 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 2 1 2 1 2 4 4 3 2 1 3 4 2 1 3 4 4 3 1 1 1 1 1 1 1 6 5 1 6 2 5 4 3 1 6 2 4 3 1 4 1 1 1 1 1 1 6 5 3 3 6 1 4 5 2 3 6 1 4 2 3 3 4 4 3 4 3 4 ...
output:
YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO YES YES YES YES NO YES YES YES YES YES YES YES YES YES YES NO NO NO YES YES NO YES YES YES YES YES YES YES YES YES YES YES YES YES NO YES YES YES YES YES YES NO YES YES YES YES YES YES YES NO YES YES YES YES Y...
result:
wrong answer 45th lines differ - expected: 'NO', found: 'YES'