Submission #321509

# Submission time Handle Problem Language Result Execution time Memory
321509 2020-11-12T15:32:51 Z CaroLinda Xylophone (JOI18_xylophone) C++14
100 / 100
295 ms 1192 KB
#include "xylophone.h"
#include <bits/stdc++.h>

#define sz(x) (int)(x.size() )
#define all(x) x.begin(),x.end()

const int MAX = 5010 ;

using namespace std ;

map< pair<int,int> , int > mp ;

void trying(vector<int> &vec )
{

	for(int i = 3 ; i < sz(vec) ; i++ )
	{
		
		int val12 = abs(vec[i-1]-vec[i-2] ) ;
		int val23 = mp[ make_pair(i-1,i) ] ;
		int val13 = mp[ make_pair(i-2,i) ] ;


		if(val12 + val23 == val13 )
		{			
			vec[i] = vec[i-2] + val13 ;
			if( vec[i-1] < vec[i-2] ) vec[i] = vec[i-2] - val13 ;
		}
		else
		{
			vec[i] = vec[i-1] + val23 ;
			if( vec[i-1] > vec[i-2] ) vec[i] = vec[i-1] - val23 ;
		}

	}

	int mn = *min_element(all(vec) ) ;

	for(int &i : vec ) i += 1-mn ;
	
}

void giveAns(vector<int> vec)
{

	for(int i = 1 ; i < sz(vec) ; i++ ) answer(i,vec[i] ) ;
}

void solve(int n) 
{

	int firstAbs = query(1,2) ;

	vector<int> seq1(n+1,0) ;  //a[1] < a[2]
	vector<int> seq2(n+1, 0) ; //a[1] > a[2]

	seq1[2] = firstAbs ;
	seq2[2] = -firstAbs ;

	for(int i = 3 ; i <= n ; i++ )
	{
		mp[ make_pair(i-2,i) ] = query(i-2, i) ;
		mp[ make_pair(i-1,i) ] = query(i-1,i) ;
	}
	
	trying(seq1) ;
	trying(seq2) ;
	 
	int idx1 = -1, idx2 = -1 ;

	for(int i = 1 ; i <= n ; i++ )
		if(seq1[i] == 1 ) idx1 = i ;

	for(int i = 1 ; i <= n ; i++ )
		if(seq2[i] == 1 ) idx2 =i  ;

	if(idx1 == -1 )  giveAns(seq2) ;
	if(idx2 == -1 ) giveAns(seq1) ;

	if(idx2 > idx1 ) 
	{
		if(query(idx2, n) == n-1 ) giveAns(seq2) ;
		else 	giveAns(seq1) ;
	}
	else 
	{
		if(query(idx1, n) == n-1 ) giveAns(seq1);
		else giveAns(seq2) ;
	}


}

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 63 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 3 ms 364 KB Output is correct
5 Correct 3 ms 364 KB Output is correct
6 Correct 84 ms 364 KB Output is correct
7 Correct 3 ms 364 KB Output is correct
8 Correct 3 ms 364 KB Output is correct
9 Correct 2 ms 364 KB Output is correct
10 Correct 92 ms 364 KB Output is correct
11 Correct 92 ms 364 KB Output is correct
12 Correct 28 ms 492 KB Output is correct
13 Correct 93 ms 364 KB Output is correct
14 Correct 3 ms 364 KB Output is correct
15 Correct 3 ms 364 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 63 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 3 ms 364 KB Output is correct
5 Correct 3 ms 364 KB Output is correct
6 Correct 84 ms 364 KB Output is correct
7 Correct 3 ms 364 KB Output is correct
8 Correct 3 ms 364 KB Output is correct
9 Correct 2 ms 364 KB Output is correct
10 Correct 92 ms 364 KB Output is correct
11 Correct 92 ms 364 KB Output is correct
12 Correct 28 ms 492 KB Output is correct
13 Correct 93 ms 364 KB Output is correct
14 Correct 3 ms 364 KB Output is correct
15 Correct 3 ms 364 KB Output is correct
16 Correct 56 ms 364 KB Output is correct
17 Correct 10 ms 364 KB Output is correct
18 Correct 15 ms 364 KB Output is correct
19 Correct 21 ms 492 KB Output is correct
20 Correct 20 ms 492 KB Output is correct
21 Correct 94 ms 396 KB Output is correct
22 Correct 94 ms 492 KB Output is correct
23 Correct 113 ms 504 KB Output is correct
24 Correct 32 ms 512 KB Output is correct
25 Correct 27 ms 492 KB Output is correct
26 Correct 46 ms 492 KB Output is correct
27 Correct 15 ms 492 KB Output is correct
28 Correct 106 ms 492 KB Output is correct
29 Correct 26 ms 492 KB Output is correct
30 Correct 18 ms 492 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 63 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 3 ms 364 KB Output is correct
5 Correct 3 ms 364 KB Output is correct
6 Correct 84 ms 364 KB Output is correct
7 Correct 3 ms 364 KB Output is correct
8 Correct 3 ms 364 KB Output is correct
9 Correct 2 ms 364 KB Output is correct
10 Correct 92 ms 364 KB Output is correct
11 Correct 92 ms 364 KB Output is correct
12 Correct 28 ms 492 KB Output is correct
13 Correct 93 ms 364 KB Output is correct
14 Correct 3 ms 364 KB Output is correct
15 Correct 3 ms 364 KB Output is correct
16 Correct 56 ms 364 KB Output is correct
17 Correct 10 ms 364 KB Output is correct
18 Correct 15 ms 364 KB Output is correct
19 Correct 21 ms 492 KB Output is correct
20 Correct 20 ms 492 KB Output is correct
21 Correct 94 ms 396 KB Output is correct
22 Correct 94 ms 492 KB Output is correct
23 Correct 113 ms 504 KB Output is correct
24 Correct 32 ms 512 KB Output is correct
25 Correct 27 ms 492 KB Output is correct
26 Correct 46 ms 492 KB Output is correct
27 Correct 15 ms 492 KB Output is correct
28 Correct 106 ms 492 KB Output is correct
29 Correct 26 ms 492 KB Output is correct
30 Correct 18 ms 492 KB Output is correct
31 Correct 37 ms 620 KB Output is correct
32 Correct 81 ms 876 KB Output is correct
33 Correct 66 ms 876 KB Output is correct
34 Correct 95 ms 1004 KB Output is correct
35 Correct 183 ms 1004 KB Output is correct
36 Correct 164 ms 1004 KB Output is correct
37 Correct 200 ms 1004 KB Output is correct
38 Correct 113 ms 1004 KB Output is correct
39 Correct 266 ms 1132 KB Output is correct
40 Correct 231 ms 1004 KB Output is correct
41 Correct 267 ms 1004 KB Output is correct
42 Correct 120 ms 920 KB Output is correct
43 Correct 247 ms 1004 KB Output is correct
44 Correct 130 ms 1048 KB Output is correct
45 Correct 295 ms 996 KB Output is correct
46 Correct 87 ms 1004 KB Output is correct
47 Correct 247 ms 1004 KB Output is correct
48 Correct 245 ms 1012 KB Output is correct
49 Correct 211 ms 1004 KB Output is correct
50 Correct 240 ms 1132 KB Output is correct
51 Correct 155 ms 1004 KB Output is correct
52 Correct 98 ms 996 KB Output is correct
53 Correct 250 ms 1132 KB Output is correct
54 Correct 123 ms 1004 KB Output is correct
55 Correct 106 ms 1004 KB Output is correct
56 Correct 279 ms 1192 KB Output is correct
57 Correct 240 ms 1004 KB Output is correct
58 Correct 95 ms 1004 KB Output is correct
59 Correct 229 ms 1004 KB Output is correct
60 Correct 235 ms 1116 KB Output is correct