CSES - Datatähti 2018 alku - Results
Submission details
Task:Bittijono
Sender:inv41idu53rn4m3
Submission time:2017-10-15 21:21:20 +0300
Language:C++
Status:READY
Result:22
Feedback
groupverdictscore
#1ACCEPTED7
#2ACCEPTED15
#30
#40
Test results
testverdicttimegroup
#1ACCEPTED0.05 s1details
#2ACCEPTED0.06 s1details
#3ACCEPTED0.05 s1details
#4ACCEPTED0.06 s1details
#5ACCEPTED0.05 s1details
#6ACCEPTED0.05 s1details
#7ACCEPTED0.04 s1details
#8ACCEPTED0.06 s1details
#9ACCEPTED0.06 s1details
#10ACCEPTED0.06 s1details
#11ACCEPTED0.07 s2details
#12ACCEPTED0.06 s2details
#13ACCEPTED0.06 s2details
#14ACCEPTED0.06 s2details
#15ACCEPTED0.06 s2details
#16ACCEPTED0.06 s2details
#17ACCEPTED0.05 s2details
#18ACCEPTED0.06 s2details
#19ACCEPTED0.05 s2details
#20ACCEPTED0.06 s2details
#21ACCEPTED0.88 s3details
#22ACCEPTED0.42 s3details
#23--3details
#24--3details
#25--3details
#26--3details
#27--3details
#28--3details
#29--3details
#30--3details
#31--4details
#32--4details
#33--4details
#34--4details
#35--4details
#36--4details
#37--4details
#38--4details
#39--4details
#40--4details

Code

#include <iostream>

using namespace std;

unsigned long long int bitstring;
int swaps[50];

int bit(int index) {
    return (bitstring >> index) & 1;
}

int getswap(int index) {
    for (int i = 49; i >= 0; i--) {
        if (swaps[i] == -1) {
            continue;
        }
        if (swaps[i] < index) {
            return swaps[i];
        }
    }
    return -1;
}

int subs(int sublength, int start) {
    if (sublength == start + 1) {
        return 1;
    }
    if (sublength > start + 1) {
        return 0;
    }
    if (sublength == 0) {
        return 0;
    }
    if (sublength == 1) {
        if (getswap(start) > -1) {
            return 2;
        } else {
            return 1;
        }
    }
    return subs(sublength - 1, start - 1) + subs(sublength - 1, getswap(start) - 1);
}

int total(int length) {
    int sum = 1; // The full string
    for (int i = 1; i < length; i++) {
        sum += subs(i, length - 1) /*+ subs(i, getswap(length - 1))*/;
    }
    return sum;
}

int main() {
    int requirement, result;
    cin >> requirement;
    if (requirement == 1) {
        cout << "1" << endl;
        return 0;
    }

    bitstring = -1;

    int length;
    do {
        bitstring++;
        for (int i = 0; i < 50; i++) {
            swaps[i] = -1;
        }
        length = 0;
        int swapcount = 0;
        while (bitstring >> length) {
            if (bit(length) != bit(length - 1)) {
                swaps[swapcount] = length - 1;
                swapcount++;
            }
            length++;
        }
        result = total(length);
    } while (result != requirement);

    for (int i = 0; i < length; i++) {
        cout << bit(i);
    }

    cout << endl;

    return 0;
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
1

correct output
1

user output
1

Test 2

Group: 1

Verdict: ACCEPTED

input
2

correct output
11

user output
11

Test 3

Group: 1

Verdict: ACCEPTED

input
3

correct output
10

user output
01

Test 4

Group: 1

Verdict: ACCEPTED

input
4

correct output
1111

user output
1111

Test 5

Group: 1

Verdict: ACCEPTED

input
5

correct output
110

user output
001

Test 6

Group: 1

Verdict: ACCEPTED

input
6

correct output
101

user output
101

Test 7

Group: 1

Verdict: ACCEPTED

input
7

correct output
1110

user output
0001

Test 8

Group: 1

Verdict: ACCEPTED

input
8

correct output
1100

user output
0011

Test 9

Group: 1

Verdict: ACCEPTED

input
9

correct output
1101

user output
1101

Test 10

Group: 1

Verdict: ACCEPTED

input
10

correct output
1001

user output
1001

Test 11

Group: 2

Verdict: ACCEPTED

input
38

correct output
1101011

user output
1101011

Test 12

Group: 2

Verdict: ACCEPTED

input
13

correct output
11011

user output
11011

Test 13

Group: 2

Verdict: ACCEPTED

input
90

correct output
111001010

user output
010001001

Test 14

Group: 2

Verdict: ACCEPTED

input
25

correct output
110010

user output
001101

Test 15

Group: 2

Verdict: ACCEPTED

input
82

correct output
111001101

user output
110010001

Test 16

Group: 2

Verdict: ACCEPTED

input
94

correct output
1100011110

user output
0011100001

Test 17

Group: 2

Verdict: ACCEPTED

input
100

correct output
1111001001

user output
1111001001

Test 18

Group: 2

Verdict: ACCEPTED

input
99

correct output
110010010

user output
010110001

Test 19

Group: 2

Verdict: ACCEPTED

input
98

correct output
110110010

user output
010111001

Test 20

Group: 2

Verdict: ACCEPTED

input
92

correct output
100110001

user output
100110001

Test 21

Group: 3

Verdict: ACCEPTED

input
1666

correct output
101101100100101

user output
010101010001001

Test 22

Group: 3

Verdict: ACCEPTED

input
897

correct output
11101001101010

user output
00101101000101

Test 23

Group: 3

Verdict:

input
4466

correct output
111101010110100101

user output
(empty)

Test 24

Group: 3

Verdict:

input
4240

correct output
11011001011010101

user output
(empty)

Test 25

Group: 3

Verdict:

input
3089

correct output
1011001010100101

user output
(empty)

Test 26

Group: 3

Verdict:

input
4697

correct output
11010101101010110

user output
(empty)

Test 27

Group: 3

Verdict:

input
4608

correct output
11010110101001010

user output
(empty)

Test 28

Group: 3

Verdict:

input
4625

correct output
111011001100101001

user output
(empty)

Test 29

Group: 3

Verdict:

input
4611

correct output
11010101010101100

user output
(empty)

Test 30

Group: 3

Verdict:

input
4917

correct output
10110100101010110

user output
(empty)

Test 31

Group: 4

Verdict:

input
178555

correct output
1011010110110101010110110

user output
(empty)

Test 32

Group: 4

Verdict:

input
864856

correct output
10111010110110100100101010010

user output
(empty)

Test 33

Group: 4

Verdict:

input
112146

correct output
1101110101011001100100110

user output
(empty)

Test 34

Group: 4

Verdict:

input
741124

correct output
1011010011010101100101011010

user output
(empty)

Test 35

Group: 4

Verdict:

input
511902

correct output
1011010100011010100101001110

user output
(empty)

Test 36

Group: 4

Verdict:

input
920019

correct output
11100100101101010101001101010

user output
(empty)

Test 37

Group: 4

Verdict:

input
933943

correct output
10101011010100100110100111001

user output
(empty)

Test 38

Group: 4

Verdict:

input
973410

correct output
1011010101011010101010101001

user output
(empty)

Test 39

Group: 4

Verdict:

input
954943

correct output
10110110010011010100100110101

user output
(empty)

Test 40

Group: 4

Verdict:

input
911674

correct output
1010110010110101010101010110

user output
(empty)