#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;
set<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 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
2 |
Incorrect |
3 ms |
376 KB |
Output isn't correct |
3 |
Incorrect |
3 ms |
376 KB |
Output isn't correct |
4 |
Incorrect |
4 ms |
504 KB |
Output isn't correct |
5 |
Incorrect |
257 ms |
8952 KB |
Output isn't correct |
6 |
Incorrect |
253 ms |
9620 KB |
Output isn't correct |
7 |
Incorrect |
214 ms |
8312 KB |
Output isn't correct |
8 |
Incorrect |
209 ms |
8312 KB |
Output isn't correct |
9 |
Incorrect |
228 ms |
8568 KB |
Output isn't correct |
10 |
Incorrect |
232 ms |
8796 KB |
Output isn't correct |