Submission #341585

# Submission time Handle Problem Language Result Execution time Memory
341585 2020-12-30T06:35:07 Z nandonathaniel Money (IZhO17_money) C++14
45 / 100
1500 ms 61036 KB
#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;
 
bool valid(){
	if(mini==maxi)return true;
	kelR=S.lower_bound(maxi);
	return kelL==kelR;
}
 
int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	int n;
	cin >> n;
	for(int i=1;i<=n;i++)cin >> a[i];
	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);
			vector<int> hapus;
			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);
		}
		S.insert(a[i+1]);
	}
	cout << dp[n] << '\n';
	return 0;
}
# Verdict Execution time Memory Grader output
1 Correct 1 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 384 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 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 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 384 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 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 0 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 512 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 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 384 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 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 0 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 512 KB Output is correct
25 Correct 1 ms 364 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 364 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 384 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
# Verdict Execution time Memory Grader output
1 Correct 1 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 384 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 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 0 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 512 KB Output is correct
25 Correct 1 ms 364 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 364 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 384 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 337 ms 29292 KB Output is correct
40 Correct 532 ms 48364 KB Output is correct
41 Correct 277 ms 23804 KB Output is correct
42 Correct 213 ms 21356 KB Output is correct
43 Correct 156 ms 15084 KB Output is correct
44 Correct 682 ms 60908 KB Output is correct
45 Correct 714 ms 60652 KB Output is correct
46 Correct 673 ms 60780 KB Output is correct
47 Correct 630 ms 60140 KB Output is correct
48 Correct 661 ms 60524 KB Output is correct
49 Correct 1232 ms 60908 KB Output is correct
50 Correct 1181 ms 60908 KB Output is correct
51 Correct 1221 ms 61036 KB Output is correct
52 Correct 1191 ms 60780 KB Output is correct
53 Correct 1164 ms 60952 KB Output is correct
54 Correct 1197 ms 60780 KB Output is correct
55 Execution timed out 1594 ms 61036 KB Time limit exceeded
56 Halted 0 ms 0 KB -