#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ull, ull> pull;
typedef pair<ll, ll> pii;
typedef pair<ld, ld> pld;
ll n;
ll h[1000009];
ll ans;
multiset<ll> s;
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
//freopen("in.txt", "r", stdin);
//freopen("out.txt", "w", stdout);
cin >> n;
for(ll i = 0; i < n; ++i)
cin >> h[i];
for(ll i = 0; i < n; ++i){
auto it = s.upper_bound(h[i]);
if(it != s.end() && *it == h[i]+1){
s.erase(it);
s.insert(h[i]);
}
else{
++ans;
s.insert(h[i]);
}
}
cout << ans << "\n";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
376 KB |
Output is correct |
2 |
Correct |
3 ms |
504 KB |
Output is correct |
3 |
Correct |
4 ms |
504 KB |
Output is correct |
4 |
Correct |
4 ms |
504 KB |
Output is correct |
5 |
Correct |
287 ms |
6776 KB |
Output is correct |
6 |
Correct |
345 ms |
7544 KB |
Output is correct |
7 |
Correct |
332 ms |
6620 KB |
Output is correct |
8 |
Correct |
278 ms |
6392 KB |
Output is correct |
9 |
Correct |
284 ms |
6648 KB |
Output is correct |
10 |
Correct |
309 ms |
6904 KB |
Output is correct |