Submission #1141557

#	Time	Username	Problem	Language	Result	Execution time	Memory
1141557		ImperialALEN	Baloni (COCI15_baloni)	C++20	100 / 100	103 ms	47048 KiB

baloni

// #pragma GCC optomize ("Ofast")
// #pragma GCC optomize ("unroll-loops")
// #pragma GCC target ("avx,avx2,fma")
#include <bits/stdc++.h> 
  
#define F first
#define S second 
#define ll long long
#define int long long
#define pb push_back
#define all(x) (x.begin(),x.end())
#define	ios	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);

using namespace std;
 
const ll N = 1e6+7, INF = 1e18, inf = 1e9 , mod = 998244353;

int a[N];
int c[N];
int pos[N];

unordered_map<int,int>mp;

vector<int>v[N];

signed main(){
	ios;
	int tt=1;
//	cin>>tt;
	while(tt--){
		int n;
		cin>>n;
		for(int i=1;i<=n;i++)cin>>a[i];
		int cnt=1;
		for(int i=1;i<=n;i++){
			if(mp[a[i]+1]>0){
				c[i]=c[v[a[i]+1][pos[a[i]+1]]];
				pos[a[i]+1]++;
				mp[a[i]+1]--;
			}else c[i]=cnt++;
			mp[a[i]]++;
			v[a[i]].pb(i);
		}	
		set<int>ans;
		for(int i=1;i<=n;i++)ans.insert(c[i]);
		cout<<ans.size();
	}
}

• Subtask 1: 100 / 100