CSES - Datatähti 2018 alku - Results
Submission details
Task:Bittijono
Sender:Leiska
Submission time:2017-10-10 18:39:34 +0300
Language:C++
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
#40
Test results
testverdicttimegroup
#10.28 s1details
#20.23 s1details
#30.04 s1details
#4ACCEPTED0.05 s1details
#50.06 s1details
#60.05 s1details
#7ACCEPTED0.05 s1details
#80.06 s1details
#9ACCEPTED0.04 s1details
#100.04 s1details
#110.08 s2details
#120.06 s2details
#130.04 s2details
#140.04 s2details
#150.04 s2details
#160.04 s2details
#170.06 s2details
#180.08 s2details
#190.04 s2details
#200.05 s2details
#210.06 s3details
#220.05 s3details
#230.07 s3details
#240.06 s3details
#250.05 s3details
#260.06 s3details
#270.03 s3details
#280.06 s3details
#290.06 s3details
#300.05 s3details
#310.22 s4details
#320.21 s4details
#330.24 s4details
#340.20 s4details
#350.21 s4details
#360.20 s4details
#370.21 s4details
#380.23 s4details
#390.20 s4details
#400.26 s4details

Compiler report

input/code.cpp: In function 'std::string bitstring(int)':
input/code.cpp:54:14: warning: 'nmax' may be used uninitialized in this function [-Wmaybe-uninitialized]
     nmax=nmax+pow(2,i);
              ^

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:

input
1

correct output
1

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::assign

Test 2

Group: 1

Verdict:

input
2

correct output
11

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::assign

Test 3

Group: 1

Verdict:

input
3

correct output
10

user output
000

Test 4

Group: 1

Verdict: ACCEPTED

input
4

correct output
1111

user output
0000

Test 5

Group: 1

Verdict:

input
5

correct output
110

user output
00000

Test 6

Group: 1

Verdict:

input
6

correct output
101

user output
000000

Test 7

Group: 1

Verdict: ACCEPTED

input
7

correct output
1110

user output
0001

Test 8

Group: 1

Verdict:

input
8

correct output
1100

user output
00000000

Test 9

Group: 1

Verdict: ACCEPTED

input
9

correct output
1101

user output
0010

Test 10

Group: 1

Verdict:

input
10

correct output
1001

user output
0000000000

Test 11

Group: 2

Verdict:

input
38

correct output
1101011

user output
00001001

Test 12

Group: 2

Verdict:

input
13

correct output
11011

user output
0000001

Test 13

Group: 2

Verdict:

input
90

correct output
111001010

user output
000000011011

Test 14

Group: 2

Verdict:

input
25

correct output
110010

user output
0000110

Test 15

Group: 2

Verdict:

input
82

correct output
111001101

user output
00000010100

Test 16

Group: 2

Verdict:

input
94

correct output
1100011110

user output
00000011010

Test 17

Group: 2

Verdict:

input
100

correct output
1111001001

user output
0000000011101

Test 18

Group: 2

Verdict:

input
99

correct output
110010010

user output
00000100100

Test 19

Group: 2

Verdict:

input
98

correct output
110110010

user output
000000100111

Test 20

Group: 2

Verdict:

input
92

correct output
100110001

user output
000000111100

Test 21

Group: 3

Verdict:

input
1666

correct output
101101100100101

user output
000000000001011111010000

Test 22

Group: 3

Verdict:

input
897

correct output
11101001101010

user output
000000001000110101

Test 23

Group: 3

Verdict:

input
4466

correct output
111101010110100101

user output
000000000001001001110101

Test 24

Group: 3

Verdict:

input
4240

correct output
11011001011010101

user output
000000000000110101011001

Test 25

Group: 3

Verdict:

input
3089

correct output
1011001010100101

user output
000000000000010110101010

Test 26

Group: 3

Verdict:

input
4697

correct output
11010101101010110

user output
0000000000001010100100111

Test 27

Group: 3

Verdict:

input
4608

correct output
11010110101001010

user output
000000000001011101001001

Test 28

Group: 3

Verdict:

input
4625

correct output
111011001100101001

user output
0000000000001001001101100

Test 29

Group: 3

Verdict:

input
4611

correct output
11010101010101100

user output
0000000000001010111101010

Test 30

Group: 3

Verdict:

input
4917

correct output
10110100101010110

user output
00000000000000111010101010

Test 31

Group: 4

Verdict:

input
178555

correct output
1011010110110101010110110

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::assign

Test 32

Group: 4

Verdict:

input
864856

correct output
10111010110110100100101010010

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::assign

Test 33

Group: 4

Verdict:

input
112146

correct output
1101110101011001100100110

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::assign

Test 34

Group: 4

Verdict:

input
741124

correct output
1011010011010101100101011010

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::assign

Test 35

Group: 4

Verdict:

input
511902

correct output
1011010100011010100101001110

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::assign

Test 36

Group: 4

Verdict:

input
920019

correct output
11100100101101010101001101010

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::assign

Test 37

Group: 4

Verdict:

input
933943

correct output
10101011010100100110100111001

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::assign

Test 38

Group: 4

Verdict:

input
973410

correct output
1011010101011010101010101001

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::assign

Test 39

Group: 4

Verdict:

input
954943

correct output
10110110010011010100100110101

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::assign

Test 40

Group: 4

Verdict:

input
911674

correct output
1010110010110101010101010110

user output
(empty)

Error:
terminate called after throwing an instance of 'std::out_of_range'
  what():  basic_string::assign