#include <bits/stdc++.h>
using namespace std;
#define for_(i, s, e) for (int i = s; i < (int) e; i++)
#define for__(i, s, e) for (ll i = s; i < e; i++)
typedef long long ll;
typedef vector<int> vi;
typedef pair<int, int> ii;
//#define endl '\n'
int main() {
#ifdef shiven
freopen("test.in", "r", stdin);
#endif
ios_base::sync_with_stdio(false);
cin.tie(0);
int n; cin >> n;
vi a(n), b(n), advPref(n);
vector<vi> elfHere(n);
for_(i, 0, n) {
int k; cin >> k;
k -= 1;
advPref[k] += 1;
elfHere[k].push_back(i);
}
for_(i, 0, n) cin >> a[i];
for_(i, 0, n) cin >> b[i];
int mn = INT_MAX, mnIdx = -1;
for_(i, 0, n) {
if (i > 0) advPref[i] += advPref[i-1];
if (advPref[i]-i < mn) {
mn = advPref[i]-i;
mnIdx = i;
}
}
//cout << "mn: " << mnIdx << endl;
mnIdx += 1;
int ans = 0;
set<int> s;
for_(idx, 0, n) {
int i = (mnIdx + idx);
if (i >= n) i -= n;
for (auto j: elfHere[i]) s.insert(b[j]);
auto pt = s.lower_bound(a[i]);
if (pt == s.end()) {
s.erase(s.begin());
} else {
ans += 1;
s.erase(pt);
}
}
cout << ans << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
774 ms |
35052 KB |
Output is correct |
2 |
Correct |
480 ms |
34160 KB |
Output is correct |
3 |
Correct |
596 ms |
42476 KB |
Output is correct |
4 |
Correct |
602 ms |
43628 KB |
Output is correct |
5 |
Correct |
404 ms |
19832 KB |
Output is correct |
6 |
Correct |
342 ms |
20088 KB |
Output is correct |
7 |
Correct |
466 ms |
23416 KB |
Output is correct |
8 |
Correct |
382 ms |
21752 KB |
Output is correct |
9 |
Correct |
479 ms |
24568 KB |
Output is correct |
10 |
Correct |
402 ms |
21932 KB |
Output is correct |