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Submission #388755

# Submission time Handle Problem Language Result Execution time Memory
388755 2021-04-12T20:16:45 Z CaroLinda Group Photo (JOI21_ho_t3) C++14
100 / 100
 84 ms 528 KB 
#include <bits/stdc++.h>

#define lp(i,a,b) for(int i =a ; i < b ; i++)
#define ll long long
#define all(x) x.begin(),x.end()
#define ff first
#define ss second
#define pb push_back
#define sz(x) (int)(x.size())
#define pii pair<int,int>
#define mk make_pair
#define mkt make_tuple
#define tiii tuple<int,int,int>

const int MAXN = 5010 ;

using namespace std ;

int N ;
int H[MAXN] , pos[MAXN] , art_pos[MAXN] ;
int maior_esq[MAXN] ;
int dp[MAXN] ;

int main()
{
	scanf("%d", &N ) ;
	lp(i,1,N+1) 
	{
		scanf("%d", &H[i] ) ;
		pos[H[i]] = i ;
	}

	vector<int> v = {1} ;

	for(int i = 2 ; i <= N ; i++ )
	{
		int p = -1 ;

		for(int j = 0 ; j < sz(v) ; j++ )
			if( pos[ v[j] ] > pos[i] )
			{
				p = j ;
				break ;
			}

		if(p == -1) v.pb(i) , p = sz(v)-1 ;
		else v.insert( v.begin()+p , i ) ;

		for(int j = p+1 ; j < sz(v) ; j++ ) maior_esq[ v[j] ]++ ;
		for(int j = 0 ;j < sz(v) ; j++ ) art_pos[ v[j] ] = j ;

		dp[i]= N*N ;

		int cost = 0 ;
		for(int g = i ; g > 0 ; g-- )
		{
			cost += i-1-art_pos[g]-maior_esq[g] ;
			dp[i]=min(dp[i] , dp[g-1]+cost) ;
		}

	}

	printf("%d\n" , dp[N] ) ;

}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:26:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   26 |  scanf("%d", &N ) ;
      |  ~~~~~^~~~~~~~~~~
Main.cpp:29:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   29 |   scanf("%d", &H[i] ) ;
      |   ~~~~~^~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 1 ms 292 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct

Subtask #3
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 1 ms 292 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 1 ms 292 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 3 ms 332 KB Output is correct
32 Correct 3 ms 332 KB Output is correct
33 Correct 3 ms 332 KB Output is correct
34 Correct 3 ms 332 KB Output is correct
35 Correct 3 ms 332 KB Output is correct
36 Correct 3 ms 204 KB Output is correct
37 Correct 3 ms 332 KB Output is correct
38 Correct 3 ms 332 KB Output is correct
39 Correct 3 ms 332 KB Output is correct
40 Correct 3 ms 332 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 1 ms 292 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 3 ms 332 KB Output is correct
32 Correct 3 ms 332 KB Output is correct
33 Correct 3 ms 332 KB Output is correct
34 Correct 3 ms 332 KB Output is correct
35 Correct 3 ms 332 KB Output is correct
36 Correct 3 ms 204 KB Output is correct
37 Correct 3 ms 332 KB Output is correct
38 Correct 3 ms 332 KB Output is correct
39 Correct 3 ms 332 KB Output is correct
40 Correct 3 ms 332 KB Output is correct
41 Correct 82 ms 396 KB Output is correct
42 Correct 83 ms 528 KB Output is correct
43 Correct 82 ms 332 KB Output is correct
44 Correct 82 ms 396 KB Output is correct
45 Correct 83 ms 404 KB Output is correct
46 Correct 83 ms 500 KB Output is correct
47 Correct 83 ms 332 KB Output is correct
48 Correct 84 ms 492 KB Output is correct
49 Correct 83 ms 368 KB Output is correct
50 Correct 83 ms 332 KB Output is correct
51 Correct 82 ms 388 KB Output is correct
52 Correct 83 ms 400 KB Output is correct
53 Correct 79 ms 332 KB Output is correct
54 Correct 82 ms 424 KB Output is correct
55 Correct 84 ms 396 KB Output is correct