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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#648816 | #5466. Permutation Compression | hei_yu_bai | WA | 1ms | 3872kb | C++20 | 2.7kb | 2024-10-17 20:32:26 | 2024-10-17 20:32:27 |
Judging History
answer
#include<iostream>
using namespace std;
#include<vector>
#include<algorithm>
#include<set>
vector<int> bit;
void update(int p) {
for (int i = p; i < bit.size(); i += i & -i) {
bit[i]++;
}
}
int getsum(int p) {
int sum = 0;
for (int i = p; i > 0; i -= i & -i) {
sum += bit[i];
}
return sum;
}
int getsum(int l, int r) {
return getsum(r) - getsum(l - 1);
}
const int N = 2e5 + 10;
vector<int> Log(N);
void init() {
for (int i = 2; i < N; ++i) {
Log[i] = Log[i >> 1] + 1;
}
return;
}
vector<vector<int>> st;
void build(vector<int>& t) {
int n = t.size();
st.resize(n, vector<int>(Log[n] + 1));
for (int i = 1; i < n; ++i) st[i][0] = t[i];
for (int i = 1; i <= Log[n]; ++i) {
int d = 1 << (i - 1);
for (int j = 1; j + d < n; ++j) {
st[j][i] = max(st[j][i - 1], st[j + d][i - 1]);
}
}
return;
}
int query(int l, int r) {
int L = Log[r - l + 1];
return max(st[l][L], st[r - (1 << L) + 1][L]);
}
void solve() {
int n, m, k;
cin >> n >> m >> k;
bit.resize(n + 1);
vector<int> a(n + 1), b(m + 1), p(n + 1);
for (int i = 1; i <= n; ++i) {
cin >> a[i];
p[a[i]] = i;
bit[i] = 0;
}
for (int i = 1; i <= m; ++i) cin >> b[i];
multiset<int> s;
s.insert(0);
for (int i = 1; i <= k; ++i) {
int v = 0;
cin >> v;
s.insert(v);
}
if (k < n - m) {
cout << "NO\n";
return;
}
int tp = 1;
for (int i = 1; i <= m; ++i) {
while (tp <= n && a[tp] != b[i]) ++tp;
}
if (tp == n + 1) {
cout << "NO\n";
return;
}
vector<bool> vis(n + 1);
vector<int> t(n + 1);
for (int i = 1; i <= m; ++i) {
vis[b[i]] = true;
t[p[b[i]]] = b[i];
}
build(t);
vector<int> l(n + 1), r(n + 1);
for (int i = 1; i <= n; ++i) {
if (!vis[i]) {
int tl = 0, tr = p[i];
while (tl + 1 < tr) {
int mid = (tl + tr) >> 1;
(query(mid, p[i]) >= i ? tl : tr) = mid;
}
l[p[i]] = tl;
tl = p[i], tr = n + 1;
while (tl + 1 < tr) {
int mid = (tl + tr) >> 1;
(query(p[i], mid) >= i ? tr : tl) = mid;
}
r[p[i]] = tr;
//cout << p[i] << " " << l[p[i]] << " " << r[p[i]] << "\n";
}
}
for (int i = n; i > 0; --i) {
if (!vis[i]) {
int j = p[i];
int q = getsum(l[j] + 1, r[j] - 1);
//cout << r[j] << " " << l[j] << " " << q << " " << r[j] - l[j] - 1 - q << "\n";
multiset<int>::iterator t = prev(s.upper_bound(r[j] - l[j] - 1 - q));
if (t == s.begin()) {
cout << "NO\n";
return;
}
s.erase(t);
update(j);
}
}
cout << "YES\n";
return;
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t = 1;
cin >> t;
while (t--) solve();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 3872kb
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: 0
Accepted
time: 1ms
memory: 3864kb
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 NO 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 YE...
result:
ok 100 lines
Test #3:
score: -100
Wrong Answer
time: 1ms
memory: 3848kb
input:
99 6 1 6 1 5 3 4 2 6 1 1 2 1 1 1 6 1 1 1 1 1 1 4 1 3 3 4 1 2 1 1 1 2 2 2 1 2 1 2 1 2 1 1 1 1 1 1 2 1 2 1 2 2 1 2 1 1 1 1 1 1 1 1 1 1 1 1 3 2 2 3 2 1 2 1 1 2 3 3 1 2 3 1 2 3 1 1 6 1 5 3 4 2 5 6 1 3 4 2 1 1 1 6 4 4 1 6 5 2 3 4 1 2 3 4 5 4 4 6 2 1 1 1 2 1 1 6 5 1 2 1 4 5 6 3 2 1 4 6 3 2 6 3 6 5 6 2 1 3...
output:
YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO NO YES YES YES YES YES YES YES YES YES NO YES YES YES YES YES YES YES YES YES YES YES YES YES YES NO YES YES YES YES YES YES YES YES NO YES YES YES NO YES YES YES NO YES YES NO YES NO YES NO YES YES YES YES YES YES NO YES NO NO YES YES YES Y...
result:
wrong answer 49th lines differ - expected: 'NO', found: 'YES'