제출 #165819

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
165819		muhi1112	Baloni (COCI15_baloni)	C++17	100 / 100	282 ms	38560 KiB

baloni

#include <bits/stdc++.h>
using namespace std;
 
#define f1 first
#define s2 second
#define pb push_back
#define mp make_pair
#define ll long long
#define fri(a) freopen(a,"r",stdin);
#define fro(a) freopen(a,"w",stdout);
const int N=1e6+5;

int n,a,ans,sayi[N],k,m;
vector<int>height[N],dizi;

int main(){
	//fri("in.txt");
	//fro("out.txt");
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>a;
		dizi.pb(a);
		sayi[dizi[i]]++;
		height[dizi[i]].pb(i);
	}
	//cout<<"sa"<<endl;
	for(int i=1e6;i>0;i--){
		ans+=sayi[i];
		while(sayi[i]--){
			//cout<<sayi[i]<<endl;
			k=i;
			m=*height[k].begin();
			height[k].erase(height[k].begin());
			//cout<<m<<endl;
			while(m<n){
				//cout<<"sa"<<endl;
				k--;
				auto it=lower_bound(height[k].begin(),height[k].end(),m);
				if(it==height[k].end()){
					break;
				}
				m=*it;
				sayi[dizi[*it]]--;
				height[k].erase(it);
			}
		}
	}
	//cout<<"sa"<<endl;
	cout<<ans<<endl;
return 0;
}

• Subtask 1: 100 / 100