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Datatähti 2018 alku

Start:2017-10-02 00:00:00
End:2017-10-16 00:00:00
 

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CSES - Datatähti 2018 alku - Results
History
2017-10-10 18:40:5949
2017-10-10 18:39:340
Task:Bittijono
Sender:Leiska
Submission time:2017-10-10 18:40:59
Language:C++
Status:READY
Score:49

Feedback

groupverdictscore
#1ACCEPTED7
#2ACCEPTED15
#3ACCEPTED27
#4TIME LIMIT EXCEEDED0

Test results

testverdicttime (s)group
#1ACCEPTED0.05 / 1.001details
#2ACCEPTED0.05 / 1.001details
#3ACCEPTED0.04 / 1.001details
#4ACCEPTED0.05 / 1.001details
#5ACCEPTED0.06 / 1.001details
#6ACCEPTED0.06 / 1.001details
#7ACCEPTED0.05 / 1.001details
#8ACCEPTED0.07 / 1.001details
#9ACCEPTED0.06 / 1.001details
#10ACCEPTED0.04 / 1.001details
#11ACCEPTED0.05 / 1.002details
#12ACCEPTED0.05 / 1.002details
#13ACCEPTED0.06 / 1.002details
#14ACCEPTED0.05 / 1.002details
#15ACCEPTED0.04 / 1.002details
#16ACCEPTED0.04 / 1.002details
#17ACCEPTED0.04 / 1.002details
#18ACCEPTED0.07 / 1.002details
#19ACCEPTED0.05 / 1.002details
#20ACCEPTED0.04 / 1.002details
#21ACCEPTED0.06 / 1.003details
#22ACCEPTED0.06 / 1.003details
#23ACCEPTED0.16 / 1.003details
#24ACCEPTED0.09 / 1.003details
#25ACCEPTED0.08 / 1.003details
#26ACCEPTED0.09 / 1.003details
#27ACCEPTED0.08 / 1.003details
#28ACCEPTED0.25 / 1.003details
#29ACCEPTED0.07 / 1.003details
#30ACCEPTED0.09 / 1.003details
#31TIME LIMIT EXCEEDED-- / 1.004details
#32TIME LIMIT EXCEEDED-- / 1.004details
#33TIME LIMIT EXCEEDED-- / 1.004details
#34TIME LIMIT EXCEEDED-- / 1.004details
#35TIME LIMIT EXCEEDED-- / 1.004details
#36TIME LIMIT EXCEEDED-- / 1.004details
#37TIME LIMIT EXCEEDED-- / 1.004details
#38TIME LIMIT EXCEEDED-- / 1.004details
#39TIME LIMIT EXCEEDED-- / 1.004details
#40TIME LIMIT EXCEEDED-- / 1.004details

Code

#include <iostream>
#include <string>
#include <vector>
#include <bitset>
#include <cmath>

using namespace std;

int table[28] = {2,4,7,12,20,33,54,88,143,232,376,609,986,1596,2583,4180,6764,10945,17710,28656,46367,75024,121392,196417,317810,514228,832039,1346268}; 

int find(string str)
{
	vector<int> last(232, -1);

	int n = str.length();

	int dp[n+1];

	dp[0] = 1;

	for (int i=1; i<=n; i++)
	{
		dp[i] = 2*dp[i-1];

		if (last[str[i-1]] != -1)
			dp[i] = dp[i] - dp[last[str[i-1]]];

		last[str[i-1]] = (i-1);
	}

	return dp[n]-1;
}

string bitstring(int n) {
	int k = 1;
	
	for(;;k++) {
		if( table[k]-1 >= n) break;
	}
	
	for(;;k++) {
		bitset<28> bits;
		
		
		long nmax;
		/*
		if(k%2==0) {
			for(int i=1;i<(k/2); i=i+2) {
				nmax=nmax+pow(2,i);
			}
		}
		else {
			for(int i=0;i<(k/2); i=i+2) {
				nmax=nmax+pow(2,i);
			}
		}
		*/
		nmax=1+((1-pow(2,k))/-1);
		
		for(int i = 0;i<nmax;i++) {
			bits=i;
			string tmp = bits.to_string();
			string bitstring;
			bitstring.assign(tmp, tmp.length()-k, k);
			if( find(bitstring) == n ) return bitstring;
		}
	}
	
	return "-1";
}

int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int n; cin >> n; cout << bitstring(n) << endl;
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
1
view   save

correct output
1
view   save

user output
0
view   save

Test 2

Group: 1

Verdict: ACCEPTED

input
2
view   save

correct output
11
view   save

user output
00
view   save

Test 3

Group: 1

Verdict: ACCEPTED

input
3
view   save

correct output
10
view   save

user output
01
view   save

Test 4

Group: 1

Verdict: ACCEPTED

input
4
view   save

correct output
1111
view   save

user output
0000
view   save

Test 5

Group: 1

Verdict: ACCEPTED

input
5
view   save

correct output
110
view   save

user output
001
view   save

Test 6

Group: 1

Verdict: ACCEPTED

input
6
view   save

correct output
101
view   save

user output
010
view   save

Test 7

Group: 1

Verdict: ACCEPTED

input
7
view   save

correct output
1110
view   save

user output
0001
view   save

Test 8

Group: 1

Verdict: ACCEPTED

input
8
view   save

correct output
1100
view   save

user output
0011
view   save

Test 9

Group: 1

Verdict: ACCEPTED

input
9
view   save

correct output
1101
view   save

user output
0010
view   save

Test 10

Group: 1

Verdict: ACCEPTED

input
10
view   save

correct output
1001
view   save

user output
0110
view   save

Test 11

Group: 2

Verdict: ACCEPTED

input
38
view   save

correct output
1101011
view   save

user output
0010100
view   save

Test 12

Group: 2

Verdict: ACCEPTED

input
13
view   save

correct output
11011
view   save

user output
00100
view   save

Test 13

Group: 2

Verdict: ACCEPTED

input
90
view   save

correct output
111001010
view   save

user output
000110101
view   save

Test 14

Group: 2

Verdict: ACCEPTED

input
25
view   save

correct output
110010
view   save

user output
001101
view   save

Test 15

Group: 2

Verdict: ACCEPTED

input
82
view   save

correct output
111001101
view   save

user output
000110010
view   save

Test 16

Group: 2

Verdict: ACCEPTED

input
94
view   save

correct output
1100011110
view   save

user output
0011100001
view   save

Test 17

Group: 2

Verdict: ACCEPTED

input
100
view   save

correct output
1111001001
view   save

user output
0000110110
view   save

Test 18

Group: 2

Verdict: ACCEPTED

input
99
view   save

correct output
110010010
view   save

user output
001101101
view   save

Test 19

Group: 2

Verdict: ACCEPTED

input
98
view   save

correct output
110110010
view   save

user output
001001101
view   save

Test 20

Group: 2

Verdict: ACCEPTED

input
92
view   save

correct output
100110001
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user output
011001110
view   save

Test 21

Group: 3

Verdict: ACCEPTED

input
1666
view   save

correct output
101101100100101
view   save

user output
010010011011010
view   save

Test 22

Group: 3

Verdict: ACCEPTED

input
897
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correct output
11101001101010
view   save

user output
00010110010101
view   save

Test 23

Group: 3

Verdict: ACCEPTED

input
4466
view   save

correct output
111101010110100101
view   save

user output
000010101001011010
view   save

Test 24

Group: 3

Verdict: ACCEPTED

input
4240
view   save

correct output
11011001011010101
view   save

user output
00100110100101010
view   save

Test 25

Group: 3

Verdict: ACCEPTED

input
3089
view   save

correct output
1011001010100101
view   save

user output
0100110101011010
view   save

Test 26

Group: 3

Verdict: ACCEPTED

input
4697
view   save

correct output
11010101101010110
view   save

user output
00101010010101001
view   save

Test 27

Group: 3

Verdict: ACCEPTED

input
4608
view   save

correct output
11010110101001010
view   save

user output
00101001010110101
view   save

Test 28

Group: 3

Verdict: ACCEPTED

input
4625
view   save

correct output
111011001100101001
view   save

user output
000100110011010110
view   save

Test 29

Group: 3

Verdict: ACCEPTED

input
4611
view   save

correct output
11010101010101100
view   save

user output
00101010101010011
view   save

Test 30

Group: 3

Verdict: ACCEPTED

input
4917
view   save

correct output
10110100101010110
view   save

user output
01001011010101001
view   save

Test 31

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
178555
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correct output
1011010110110101010110110
view   save

user output
(no output)
view   save

Test 32

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
864856
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correct output
10111010110110100100101010010
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user output
(no output)
view   save

Test 33

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
112146
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correct output
1101110101011001100100110
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user output
(no output)
view   save

Test 34

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
741124
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correct output
1011010011010101100101011010
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user output
(no output)
view   save

Test 35

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
511902
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correct output
1011010100011010100101001110
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user output
(no output)
view   save

Test 36

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
920019
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correct output
11100100101101010101001101010
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user output
(no output)
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Test 37

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
933943
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correct output
10101011010100100110100111001
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user output
(no output)
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Test 38

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
973410
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correct output
1011010101011010101010101001
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user output
(no output)
view   save

Test 39

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
954943
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correct output
10110110010011010100100110101
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user output
(no output)
view   save

Test 40

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
911674
view   save

correct output
1010110010110101010101010110
view   save

user output
(no output)
view   save