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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#75486 | #5466. Permutation Compression | Bucketsmith | WA | 1ms | 5740kb | C++14 | 1.9kb | 2023-02-05 13:06:57 | 2023-02-05 13:07:00 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int N = 2e5 + 10;
int n, m, k;
int a[N], l[N];
bool b[N];
int tr[N];
inline int lb(int x) {return x & (-x);}
void add(int p) {
while(p <= n) {
tr[p] ++;
p += lb(p);
}
}
int query(int p) {
int ret = 0;
while(p > 0) {
ret += tr[p];
p -= lb(p);
}
return ret;
}
bool solve() {
scanf("%d%d%d", &n, &m, &k);
memset(b + 1, false, sizeof(bool) * n);
memset(tr + 1, 0, sizeof(int) * n);
for(int i = 1, x; i <= n; i ++) {
scanf("%d", &x);
a[x] = i;
}
for(int i = 1, lst = 0, x; i <= m; i ++) {
scanf("%d", &x);
if(a[x] < a[lst]) return false;
b[x] = true;
lst = x;
}
priority_queue<int> l;
for(int i = 1, x; i <= k; i ++) {
scanf("%d", &x);
l.push(x);
}
set<int> s;
s.insert(0);
s.insert(n + 1);
vector<int> ans;
for(int i = n; i >= 1; i --) {
if(b[i]) s.insert(a[i]);
else {
auto it = s.lower_bound(a[i]);
add(a[i]);
ans.push_back(*it - *prev(it) - query(*it - 1) + query(*prev(it)));
}
}
sort(ans.begin(), ans.end(), greater<int>());
for(int x : ans) {
//cerr << x << " ";
while(l.size() && l.top() > x) l.pop();
if(l.empty()) return false;
l.pop();
}
return true;
}
int main() {
int T;
scanf("%d", &T);
for(int i = 1; i <= T; i ++) {
puts(solve() ? "YES" : "NO");
if(i == 18) {
printf("%d %d %d\n", n, m, k);
for(int i = 1; i <= n; i ++)
printf("%d ", a[i]);
puts("");
for(int i = 1; i <= n; i ++)
printf("%d ", b[i]);
puts("");
}
}
}
Details
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Test #1:
score: 100
Accepted
time: 1ms
memory: 5740kb
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: 1ms
memory: 3656kb
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 1 1 1 1 1 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 YE...
result:
wrong answer 19th lines differ - expected: 'YES', found: '1 1 1'