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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#768018 | #5466. Permutation Compression | wxhtzdy | WA | 0ms | 3592kb | C++20 | 2.7kb | 2024-11-20 23:37:26 | 2024-11-20 23:37:27 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int tt;
cin >> tt;
while (tt--) {
int n, m, k;
cin >> n >> m >> k;
vector<int> a(n);
for (int i = 0; i < n; i++) {
cin >> a[i];
--a[i];
}
vector<int> b(m);
for (int i = 0; i < m; i++) {
cin >> b[i];
--b[i];
}
vector<bool> del(n);
for (int i = 0; i < m; i++) {
del[b[i]] = true;
}
multiset<int> st;
for (int i = 0; i < k; i++) {
int l;
cin >> l;
st.insert(l);
}
vector<int> L(n);
vector<int> R(n);
{
vector<int> stk;
for (int i = 0; i < n; i++) {
int low = 0, high = int(stk.size()) - 1, id = -1;
while (low <= high) {
int mid = low + high >> 1;
if (a[stk[mid]] > a[i]) {
id = stk[mid];
low = mid + 1;
} else {
high = mid - 1;
}
}
L[i] = id;
if (del[a[i]]) {
while (!stk.empty() && a[stk.back()] < a[i]) {
stk.pop_back();
}
stk.push_back(i);
}
}
}
{
vector<int> stk;
for (int i = n - 1; i >= 0; i--) {
int low = 0, high = int(stk.size()) - 1, id = n;
while (low <= high) {
int mid = low + high >> 1;
if (a[stk[mid]] > a[i]) {
id = stk[mid];
low = mid + 1;
} else {
high = mid - 1;
}
}
R[i] = id;
if (del[a[i]]) {
while (!stk.empty() && a[stk.back()] < a[i]) {
stk.pop_back();
}
stk.push_back(i);
}
}
}
vector<int> order(n);
iota(order.begin(), order.end(), 0);
sort(order.begin(), order.end(), [&](int i, int j) {
return a[i] > a[j];
});
vector<int> fenw(n);
auto Modify = [&](int p, int v) {
while (p < n) {
fenw[p] += v;
p |= (p + 1);
}
};
auto Query = [&](int p) {
int v = 0;
while (p >= 0) {
v += fenw[p];
p = (p & (p + 1)) - 1;
}
return v;
};
for (int i = 0; i < n; i++) {
Modify(i, +1);
}
bool ok = true;
for (int i : order) {
if (del[a[i]]) {
continue;
}
int need = Query(R[i] - 1) - Query(L[i]);
Modify(i, -1);
auto it = st.lower_bound(need + 1);
if (it == st.begin()) {
ok = false;
break;
}
it = prev(it);
st.erase(it);
}
cout << (ok ? "YES" : "NO") << '\n';
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3592kb
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: 0ms
memory: 3536kb
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'