CSES - Datatähti 2018 alku - Results
Submission details
Task:Bittijono
Sender:inkeri
Submission time:2017-10-15 22:56:30 +0300
Language:Python3
Status:READY
Result:49
Feedback
groupverdictscore
#1ACCEPTED7
#2ACCEPTED15
#3ACCEPTED27
#40
Test results
testverdicttimegroup
#1ACCEPTED0.11 s1details
#2ACCEPTED0.08 s1details
#3ACCEPTED0.08 s1details
#4ACCEPTED0.07 s1details
#5ACCEPTED0.09 s1details
#6ACCEPTED0.08 s1details
#7ACCEPTED0.06 s1details
#8ACCEPTED0.07 s1details
#9ACCEPTED0.10 s1details
#10ACCEPTED0.07 s1details
#11ACCEPTED0.10 s2details
#12ACCEPTED0.09 s2details
#13ACCEPTED0.08 s2details
#14ACCEPTED0.07 s2details
#15ACCEPTED0.07 s2details
#16ACCEPTED0.08 s2details
#17ACCEPTED0.06 s2details
#18ACCEPTED0.08 s2details
#19ACCEPTED0.06 s2details
#20ACCEPTED0.08 s2details
#21ACCEPTED0.08 s3details
#22ACCEPTED0.07 s3details
#23ACCEPTED0.21 s3details
#24ACCEPTED0.10 s3details
#25ACCEPTED0.10 s3details
#26ACCEPTED0.13 s3details
#27ACCEPTED0.10 s3details
#28ACCEPTED0.19 s3details
#29ACCEPTED0.12 s3details
#30ACCEPTED0.08 s3details
#31--4details
#32--4details
#33--4details
#34--4details
#35--4details
#36--4details
#37--4details
#38--4details
#39--4details
#40--4details

Code

# def main():
#     b = 0
#     for i in range(5000, 8000):
#         a = main1(i)
#         if a != 0:
#             b += 1
#     print(b)

# def main1(tavoite):
def main():
    tavoite = int(input())
    pituus = 1;
    summa = 1
    a = 1
    b = 1
    while summa < tavoite:
        pituus+=1
        a, b = a + b, a
        summa += a
    alku = 2**(pituus-1)
    loppu = 2*alku
    parillinen = tavoite % 2 == 0
    kaytetyt = set()
    # skipatut1 = 0
    # skipatut2 = 0
    while True:
        a = []
        if parillinen:
            a.append([alku + 1, loppu, 3])
        else:
            a.append([alku, loppu, 3])
            a.append([alku + 2, loppu, 3])
        #minimi- ja maksimimäärät tietyille 0:en ja 1:en suhteille
        maarat = {}
        maarat[pituus] = pituus < tavoite
        for maara in range(pituus - 1, pituus // 2, -1):
            patkat = []
            patkienMaara = pituus - maara + 1
            maara1 = maara
            while maara1 > 0:
                patka = maara1 // patkienMaara
                patkienMaara -= 1
                patkat.append(patka)
                maara1 -= patka
            jono = ""
            while len(patkat) > 2:
                jono += "1" * patkat.pop(0)
                jono += "0"
                jono += "1" * patkat.pop()
                jono += "0"
            if len(patkat) == 2:
                jono += "1" * patkat.pop(0)
                jono += "0"
            jono += "1" * patkat.pop()
            # print(jono)
            maarat[maara] = alijonot(jono) < tavoite
        if pituus % 2 == 0:
            jono = "10" * (pituus // 2)
            maarat[pituus // 2] = alijonot(jono) < tavoite
            # print()
            # print(jono)
        # print(pituus)
        # print(maarat)
        for lista in a:
            for j in range(lista[0], lista[1], lista[2]):
                if j in kaytetyt:
                    # skipatut1 += 1
                    continue
                jono = format(j, 'b')
                maara = 0
                for merkki in jono:
                    if merkki == "1":
                        maara += 1
                if maara <= pituus // 2:
                    maara = pituus - maara
                if maarat[maara]:
                    # skipatut2 += 1
                    continue
                if alijonot(jono) == tavoite:
                    #print("käytetyt: " + str(skipatut1))
                    #print("määrä: " + str(skipatut2))
                    print(jono)
                    return
                    # return skipatut2
                    # return skipatut2
                if j % 2 != 0:
                    kaytetyt.add(int(jono[::-1], 2))
                else:
                    #käännetään merkit miinuslaskulla (11111 - 10110 = 01001)
                    #sitten peilaus: 01001 --> 10010
                    miinus = loppu - 1 - j;
                    bittijono = format(miinus, 'b')
                    peilattu = bittijono[::-1]
                    peilattu += "0" * (len(jono) - len(peilattu))
                    kaytetyt.add(int(peilattu, 2))
        alku = loppu
        loppu *= 2
        pituus += 1

def alijonot(bittijono):
    uusia0 = 1
    uusia1 = 1
    maara = 0
    for i in range(len(bittijono)):
        luku = bittijono[i]
        if luku == "1":
            maara += uusia1
            uusia0 += uusia1
        else:
            maara += uusia0
            uusia1 += uusia0
    return maara

main()

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
10

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
100

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
1000

Test 8

Group: 1

Verdict: ACCEPTED

input
8

correct output
1100

user output
1100

Test 9

Group: 1

Verdict: ACCEPTED

input
9

correct output
1101

user output
1011

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
100100010

Test 14

Group: 2

Verdict: ACCEPTED

input
25

correct output
110010

user output
101100

Test 15

Group: 2

Verdict: ACCEPTED

input
82

correct output
111001101

user output
100010011

Test 16

Group: 2

Verdict: ACCEPTED

input
94

correct output
1100011110

user output
1000011100

Test 17

Group: 2

Verdict: ACCEPTED

input
100

correct output
1111001001

user output
1001001111

Test 18

Group: 2

Verdict: ACCEPTED

input
99

correct output
110010010

user output
101001110

Test 19

Group: 2

Verdict: ACCEPTED

input
98

correct output
110110010

user output
100111010

Test 20

Group: 2

Verdict: ACCEPTED

input
92

correct output
100110001

user output
100011001

Test 21

Group: 3

Verdict: ACCEPTED

input
1666

correct output
101101100100101

user output
100100010101010

Test 22

Group: 3

Verdict: ACCEPTED

input
897

correct output
11101001101010

user output
10101001101000

Test 23

Group: 3

Verdict: ACCEPTED

input
4466

correct output
111101010110100101

user output
101001001110001011

Test 24

Group: 3

Verdict: ACCEPTED

input
4240

correct output
11011001011010101

user output
10101011010011011

Test 25

Group: 3

Verdict: ACCEPTED

input
3089

correct output
1011001010100101

user output
1010010101001101

Test 26

Group: 3

Verdict: ACCEPTED

input
4697

correct output
11010101101010110

user output
10010101001010100

Test 27

Group: 3

Verdict: ACCEPTED

input
4608

correct output
11010110101001010

user output
10101101010010100

Test 28

Group: 3

Verdict: ACCEPTED

input
4625

correct output
111011001100101001

user output
100010101110110110

Test 29

Group: 3

Verdict: ACCEPTED

input
4611

correct output
11010101010101100

user output
11010100101001010

Test 30

Group: 3

Verdict: ACCEPTED

input
4917

correct output
10110100101010110

user output
10010101011010010

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)