#define fast ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#include <bits/stdc++.h>
using namespace std;
#define sqr 340
#define mid (l+r)/2
#define pb push_back
#define ppb pop_back
#define fi first
#define se second
#define lb lower_bound
#define ub upper_bound
#define ins insert
#define era erase
#define C continue
#define mem(dp,i) memset(dp,i,sizeof(dp))
#define mset multiset
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pi;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<pi> vpi;
typedef vector<pll> vpll;
const ll mod=1000000007;
const ll mod2=998244353;
const ll inf=1e18*4;
const ld pai=acos(-1);
int n;
int a[1000009];
map<int,int>num;
int main(){
fast;
cin>>n;
int ans=0;
for(int i=0;i<n;i++)cin>>a[i],num[a[i]]++;
for(int i=0;i<n;i++){
if(num[a[i]]==0)C;
ans++;
int crnt=a[i];
while(crnt){
if(num[crnt]==0)break;
num[crnt]--;
crnt--;
}
}
cout<<ans<<endl;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
376 KB |
Output isn't correct |
| 2 |
Incorrect |
3 ms |
380 KB |
Output isn't correct |
| 3 |
Incorrect |
4 ms |
376 KB |
Output isn't correct |
| 4 |
Incorrect |
4 ms |
376 KB |
Output isn't correct |
| 5 |
Incorrect |
325 ms |
6592 KB |
Output isn't correct |
| 6 |
Incorrect |
316 ms |
6924 KB |
Output isn't correct |
| 7 |
Incorrect |
246 ms |
5512 KB |
Output isn't correct |
| 8 |
Incorrect |
245 ms |
5432 KB |
Output isn't correct |
| 9 |
Incorrect |
287 ms |
6136 KB |
Output isn't correct |
| 10 |
Incorrect |
279 ms |
6136 KB |
Output isn't correct |
