oj.uz

답안 #319200

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
319200 2020-11-04T13:44:50 Z kshitij_sodani Money (IZhO17_money) C++14
9 / 100
 1 ms 492 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long llo;
#define mp make_pair
#define pb push_back
#define a first 
#define b second
//#define endl '\n'
int n;
int it[1000001];
int tree[1000001*4];
void build(int no,int l,int r){
	if(l==r){
		tree[no]=it[l];
	}
	else{
		int mid=(l+r)/2;
		build(no*2+1,l,mid);
		build(no*2+2,mid+1,r);
		tree[no]=max(tree[no*2+1],tree[no*2+2]);
	}
}
int query(int no,int l,int r,int aa,int bb){
	if(r<aa or l>bb){
		return 0;
	}
	if(aa<=l and r<=bb){
		return tree[no];
	}
	else{
		int mid=(l+r)/2;
		return max(query(no*2+1,l,mid,aa,bb),query(no*2+2,mid+1,r,aa,bb));

	}
}
bool cmp(pair<int,int> aa,pair<int,int> bb){
	if(aa.b<bb.b){
		return true;
	}
	return false;
}
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cin>>n;
	for(int i=0;i<n;i++){
		cin>>it[i];
	}
	vector<pair<int,int>> ss;
	vector<pair<int,int>> tt;
	set<int> kk;
	build(0,0,n-1);
	for(int i=0;i<n;i++){
		while(ss.size()){
			if(ss.back().a<=it[i]){
				ss.pop_back();
			}
			else{
				break;
			}
		}
		if(ss.size()){
			int ne=ss.back().b;
			tt.pb({ne,i-1});
			int jj=*kk.upper_bound(it[i]);
			int low=i;
			for(int j=19;j>=0;j--){
				if(low+(1<<j)<n){
					if(query(0,0,n-1,i,low+(1<<j))<=jj){
						low+=(1<<j);
					}
				}
			}
			if(low<n-1){
				tt.pb({i,low});
			}
		}
		kk.insert(it[i]);
		ss.pb({it[i],i});
	}
	set<pair<int,int>> mm;
	for(auto j:tt){
		mm.insert(j);
	}
	sort(tt.begin(),tt.end(),cmp);
	int ans=1;
	for(auto j:tt){
		if(mm.find(j)!=mm.end()){
			ans+=1;
			auto jj=mm.lower_bound({j.a,0});
			vector<pair<int,int>> xx;
			while(jj!=mm.end()){
				if((*jj).a<=j.b){
					xx.pb(*jj);
					jj++;
				}
				else{
					break;
				}
			}
			for(auto jjj:xx){
				mm.erase(jjj);
			}
		}
	}
	cout<<ans<<endl;

	return 0;
}

Subtask #1
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 492 KB Output is correct

Subtask #2
0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 492 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 360 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Incorrect 1 ms 364 KB Output isn't correct
26 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 492 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 360 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Incorrect 1 ms 364 KB Output isn't correct
26 Halted 0 ms 0 KB -

Subtask #4
0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 492 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 360 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Incorrect 1 ms 364 KB Output isn't correct
26 Halted 0 ms 0 KB -