oj.uz

답안 #602171

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
602171 2022-07-22T16:13:05 Z inksamurai Baloni (COCI15_baloni) C++17
100 / 100
 813 ms 92368 KB 
#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
#define rng(i,c,n) for(int i=(c);i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define fi first
#define se second
#define sz(a) (int)a.size()
#define vec(...) vector<__VA_ARGS__>
#define _3aFGabX ios::sync_with_stdio(0),cin.tie(0)
typedef long long ll;
using pii=pair<int,int>;
using vi=vector<int>;
void print(){cout<<'\n';}
template<class h,class...t>
void print(const h&v,const t&...u){cout<<v<<' ',print(u...);}
// e

const int _n=1000011; // fix me
set<int> rbts[_n+11];

signed main(){
_3aFGabX;
	int n;
	cin>>n;
	vi a(n);
	rep(i,n){
		cin>>a[i];
		rbts[a[i]].insert(i);
	}
	// print(sz(rbts[1]));
	int res=0;
	for(int i=_n;i>=1;i--){
		while(sz(rbts[i])){
			res+=1;
			int v=i,j=-1;
			while(v and sz(rbts[v])){
				auto it=rbts[v].lower_bound(j);
				if(it!=rbts[v].end()){
					j=*it;
					rbts[v].erase(it);
				}else{
					break;
				}
				v-=1;
			}
		}
	}
	print(res);
}

Subtask #1
100.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 26 ms 47316 KB Output is correct
2 Correct 26 ms 47316 KB Output is correct
3 Correct 27 ms 47484 KB Output is correct
4 Correct 26 ms 47500 KB Output is correct
5 Correct 775 ms 87416 KB Output is correct
6 Correct 813 ms 92368 KB Output is correct
7 Correct 677 ms 84432 KB Output is correct
8 Correct 603 ms 84008 KB Output is correct
9 Correct 660 ms 86068 KB Output is correct
10 Correct 749 ms 87580 KB Output is correct