CSES - Datatähti 2020 loppu - Results
Submission details
Task:Riippuliito
Sender:Valtteri Aurela
Submission time:2020-02-09 15:52:01 +0200
Language:C++11
Status:READY
Result:39
Feedback
groupverdictscore
#1ACCEPTED18
#2ACCEPTED21
#30
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2, 3details
#2ACCEPTED0.01 s1, 2, 3details
#3ACCEPTED0.01 s1, 2, 3details
#4ACCEPTED0.01 s1, 2, 3details
#5ACCEPTED0.01 s1, 2, 3details
#6ACCEPTED0.01 s1, 2, 3details
#7ACCEPTED0.01 s1, 2, 3details
#8ACCEPTED0.01 s2, 3details
#9ACCEPTED0.03 s2, 3details
#10ACCEPTED0.03 s2, 3details
#11ACCEPTED0.01 s2, 3details
#12ACCEPTED0.01 s2, 3details
#13ACCEPTED0.02 s2, 3details
#14ACCEPTED0.03 s2, 3details
#15ACCEPTED0.05 s3details
#16--3details
#17--3details
#18ACCEPTED0.07 s3details
#19ACCEPTED0.13 s3details
#20--3details
#21--3details
#22ACCEPTED0.01 s1, 2, 3details
#23ACCEPTED0.01 s1, 2, 3details
#24ACCEPTED0.01 s1, 2, 3details
#25ACCEPTED0.01 s1, 2, 3details
#26ACCEPTED0.01 s1, 2, 3details
#27ACCEPTED0.01 s1, 2, 3details
#28ACCEPTED0.01 s1, 2, 3details
#29ACCEPTED0.01 s1, 2, 3details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:59:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < he.size(); i++){
                 ~~^~~~~~~~~~~

Code

#include<bits/stdc++.h>
using namespace std;

int n;
int h;
vector<int> he;
int edellinen[1010101];
int seuraava[1010101];
int maara[1010101];
int main(){
	cin >> n;
	for(int i = 0; i < n; i++){
		cin >> h;
		he.push_back(h);
	}
	for(int i = 0; i < n; i++){
		bool bo = false;
		if(i == 0){
			edellinen[i] = 0;
			continue;
		}
		if(he[i-1] >= he[i]){
			edellinen[i] = i;
			continue;
		}
		for(int j = i-1; j>= 0; j--){
			if(he[j] >= he[i]){
				bo = true;
				edellinen[i] = j+1;
				break;
			}
		}
		if(!bo) edellinen[i] = 0;
	}
	for(int i = 0; i < n; i++){
		bool bo = false;
		if(i == n-1){
			seuraava[i] = n-1;
			continue;
		}
		if(he[i+1] >= he[i]){
			seuraava[i] = i;
			continue;
		}
		for(int j = i+1; j < n; j++){
			if(he[j] >= he[i]){
				bo = true;
				seuraava[i] = j-1;
				break;
			}
		}
		if(!bo) seuraava[i] = n-1;
	}

	for(int i = 0; i < n; i++){
		//cout << i << ": " << edellinen[i] << "," << seuraava[i] << "\n";
	}
	vector<pair<int,int>> he2;
	for(int i = 0; i < he.size(); i++){
		he2.push_back({he[i],i});
	}
	sort(he2.begin(), he2.end());
	int maxi2 = 0;
	for(int i = 0; i < n; i++) maara[i] = 0;
	for(auto u : he2){
		int eka = u.second;
		int maxi = 0;
		for(int i = edellinen[eka]; i <= seuraava[eka]; i++){
			maxi = max(maxi,maara[i]);
		}
		maara[u.second] = maxi+1;
		maxi2=max(maara[u.second],maxi2);
	}
	for(int i = 0; i < n; i++){
		//cout << i << ": " << maara[i] << "\n";
	}
	cout << maxi2 << "\n";	
}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
10
1 1 1 1 1 1 1 1 1 1

correct output
1

user output
1

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
10
1 2 3 4 5 6 7 8 9 10

correct output
10

user output
10

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
10
10 9 8 7 6 5 4 3 2 1

correct output
10

user output
10

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
10
10 9 6 10 10 3 6 7 6 5

correct output
4

user output
4

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
10
51 90 27 98 85 47 14 55 82 52

correct output
6

user output
6

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

input
10
9 65 90 86 45 52 52 95 40 85

correct output
5

user output
5

Test 7

Group: 1, 2, 3

Verdict: ACCEPTED

input
10
3 46 77 16 59 32 22 41 87 89

correct output
7

user output
7

Test 8

Group: 2, 3

Verdict: ACCEPTED

input
5000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
1

user output
1

Test 9

Group: 2, 3

Verdict: ACCEPTED

input
5000
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
5000

user output
5000

Test 10

Group: 2, 3

Verdict: ACCEPTED

input
5000
5000 4999 4998 4997 4996 4995 ...

correct output
5000

user output
5000

Test 11

Group: 2, 3

Verdict: ACCEPTED

input
5000
10 8 10 5 4 9 2 9 10 10 1 2 7 ...

correct output
9

user output
9

Test 12

Group: 2, 3

Verdict: ACCEPTED

input
5000
655923386 310000737 281882248 ...

correct output
28

user output
28

Test 13

Group: 2, 3

Verdict: ACCEPTED

input
5000
123456789 123456790 123456791 ...

correct output
2706

user output
2706

Test 14

Group: 2, 3

Verdict: ACCEPTED

input
5000
123456789 123456790 123456791 ...

correct output
5000

user output
5000

Test 15

Group: 3

Verdict: ACCEPTED

input
200000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
1

user output
1

Test 16

Group: 3

Verdict:

input
200000
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
200000

user output
(empty)

Test 17

Group: 3

Verdict:

input
200000
200000 199999 199998 199997 19...

correct output
200000

user output
(empty)

Test 18

Group: 3

Verdict: ACCEPTED

input
200000
4 7 8 3 3 10 3 4 2 6 10 8 5 8 ...

correct output
10

user output
10

Test 19

Group: 3

Verdict: ACCEPTED

input
200000
824527039 112439661 517794857 ...

correct output
43

user output
43

Test 20

Group: 3

Verdict:

input
200000
123456789 123456790 123456791 ...

correct output
30764

user output
(empty)

Test 21

Group: 3

Verdict:

input
200000
123456789 123456790 123456791 ...

correct output
61367

user output
(empty)

Test 22

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
1

correct output
1

user output
1

Test 23

Group: 1, 2, 3

Verdict: ACCEPTED

input
2
1 1

correct output
1

user output
1

Test 24

Group: 1, 2, 3

Verdict: ACCEPTED

input
2
1 2

correct output
2

user output
2

Test 25

Group: 1, 2, 3

Verdict: ACCEPTED

input
2
2 1

correct output
2

user output
2

Test 26

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
1 2 1

correct output
2

user output
2

Test 27

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
1 2 3

correct output
3

user output
3

Test 28

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
3 2 1

correct output
3

user output
3

Test 29

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
2 1 2

correct output
2

user output
2