답안 #341589

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
341589	2020-12-30T06:56:46 Z	nandonathaniel	Money (IZhO17_money)	C++14	45 / 100	1500 ms	61036 KB

money

#include<bits/stdc++.h>
using namespace std;
const int MAXN=1e6+5;
int a[MAXN],dp[MAXN],mini,maxi,kel[MAXN],terakhir[MAXN];
 
set<int> S,active;
set<int>::iterator kelL,kelR;
vector<set<int>::iterator> hapus;

inline int read() {
	int X=0,w=1; char c=getchar_unlocked();
	while (c<'0'||c>'9') { if (c=='-') w=-1; c=getchar_unlocked(); }
	while (c>='0'&&c<='9') X=X*10+c-'0',c=getchar_unlocked();
	return X*w;
}

inline bool valid(){
	if(mini==maxi)return true;
	kelR=S.lower_bound(maxi);
	return kelL==kelR;
}
 
int main(){
	int n;
	n=read();
	for(int i=1;i<=n;i++)a[i]=read();
	int last=1,idx=0;
	for(int i=1;i<=n;i++){
		if(i==n || a[i]>a[i+1]){
			idx++;
			for(int j=last;j<=i;j++)kel[j]=idx;
			last=i+1;
			terakhir[idx]=i;
		}
		dp[i]=1e9;
		active.insert(i);
	}
	S.insert(0);
	S.insert(1e6+5);
	for(int i=0;i<n;i++){
		int ki=i+1,ka=terakhir[kel[i+1]],res=-1;
		mini=a[ki];
		kelL=S.upper_bound(mini);
		while(ki<=ka){
			int mid=(ki+ka)/2;
			maxi=a[mid];
			if(valid()){
				res=mid;
				ki=mid+1;
			}
			else ka=mid-1;
		}
		if(res!=-1){
			//Ini gtw proofnya knp ga TLE, apa emang haram?
			//for(int j=i+1;j<=res;j++)dp[j]=min(dp[j],dp[i]+1);
			auto itL=active.lower_bound(i+1),itR=active.upper_bound(res);
			for(auto it=itL;it!=itR;++it){
				dp[*it]=min(dp[*it],dp[i]+1);
				hapus.push_back(it);
			}
			for(auto isi : hapus)active.erase(isi);
			hapus.clear();
		}
		S.insert(a[i+1]);
	}
	printf("%d\n",dp[n]);
	return 0;
}

Subtask #1
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	512 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	384 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	0 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	384 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	376 KB	Output is correct

Subtask #2
16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	512 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	384 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	0 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	384 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	376 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	492 KB	Output is correct
20	Correct	1 ms	364 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	384 KB	Output is correct
25	Correct	1 ms	376 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct

Subtask #3
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	512 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	384 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	0 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	384 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	376 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	492 KB	Output is correct
20	Correct	1 ms	364 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	384 KB	Output is correct
25	Correct	1 ms	376 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct
31	Correct	1 ms	364 KB	Output is correct
32	Correct	1 ms	364 KB	Output is correct
33	Correct	1 ms	364 KB	Output is correct
34	Correct	1 ms	364 KB	Output is correct
35	Correct	1 ms	364 KB	Output is correct
36	Correct	1 ms	364 KB	Output is correct
37	Correct	1 ms	364 KB	Output is correct
38	Correct	1 ms	364 KB	Output is correct

Subtask #4
0 / 55.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	512 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	384 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	0 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	384 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	376 KB	Output is correct
17	Correct	1 ms	364 KB	Output is correct
18	Correct	1 ms	364 KB	Output is correct
19	Correct	1 ms	492 KB	Output is correct
20	Correct	1 ms	364 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	384 KB	Output is correct
25	Correct	1 ms	376 KB	Output is correct
26	Correct	1 ms	364 KB	Output is correct
27	Correct	1 ms	364 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	1 ms	364 KB	Output is correct
30	Correct	1 ms	364 KB	Output is correct
31	Correct	1 ms	364 KB	Output is correct
32	Correct	1 ms	364 KB	Output is correct
33	Correct	1 ms	364 KB	Output is correct
34	Correct	1 ms	364 KB	Output is correct
35	Correct	1 ms	364 KB	Output is correct
36	Correct	1 ms	364 KB	Output is correct
37	Correct	1 ms	364 KB	Output is correct
38	Correct	1 ms	364 KB	Output is correct
39	Correct	222 ms	29292 KB	Output is correct
40	Correct	391 ms	48108 KB	Output is correct
41	Correct	174 ms	23788 KB	Output is correct
42	Correct	165 ms	21228 KB	Output is correct
43	Correct	114 ms	15084 KB	Output is correct
44	Correct	500 ms	60780 KB	Output is correct
45	Correct	492 ms	60652 KB	Output is correct
46	Correct	497 ms	60996 KB	Output is correct
47	Correct	447 ms	60012 KB	Output is correct
48	Correct	497 ms	60396 KB	Output is correct
49	Correct	983 ms	60908 KB	Output is correct
50	Correct	986 ms	60832 KB	Output is correct
51	Correct	983 ms	61036 KB	Output is correct
52	Correct	969 ms	60908 KB	Output is correct
53	Correct	975 ms	60908 KB	Output is correct
54	Correct	967 ms	60652 KB	Output is correct
55	Execution timed out	1552 ms	60924 KB	Time limit exceeded
56	Halted	0 ms	0 KB	-

답안 #341589

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 16.0 / 16.0

Subtask #3 20.0 / 20.0

Subtask #4 0 / 55.0

Subtask #1
9.0 / 9.0

Subtask #2
16.0 / 16.0

Subtask #3
20.0 / 20.0

Subtask #4
0 / 55.0