CSES - Putka Open 2020 – 1/5

Submission details
Task:	Lista
Sender:	osku91
Submission time:	2020-09-06 11:50:42 +0300
Language:	Python3 (CPython3)
Status:	READY
Result:	59

Feedback
group	verdict	score
#1	ACCEPTED	21
#2	ACCEPTED	38
#3	TIME LIMIT EXCEEDED	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.02 s	1, 2, 3	details
#2	ACCEPTED	0.02 s	1, 2, 3	details
#3	ACCEPTED	0.02 s	1, 2, 3	details
#4	ACCEPTED	0.02 s	1, 2, 3	details
#5	ACCEPTED	0.02 s	1, 2, 3	details
#6	ACCEPTED	0.02 s	1, 2, 3	details
#7	ACCEPTED	0.02 s	1, 2, 3	details
#8	ACCEPTED	0.02 s	1, 2, 3	details
#9	ACCEPTED	0.02 s	1, 2, 3	details
#10	ACCEPTED	0.02 s	2, 3	details
#11	ACCEPTED	0.03 s	2, 3	details
#12	ACCEPTED	0.04 s	2, 3	details
#13	ACCEPTED	0.03 s	2, 3	details
#14	ACCEPTED	0.03 s	2, 3	details
#15	ACCEPTED	0.04 s	2, 3	details
#16	TIME LIMIT EXCEEDED	--	3	details
#17	ACCEPTED	0.40 s	3	details
#18	TIME LIMIT EXCEEDED	--	3	details
#19	TIME LIMIT EXCEEDED	--	3	details
#20	TIME LIMIT EXCEEDED	--	3	details
#21	ACCEPTED	0.35 s	3	details

Code

import sys

sys.setrecursionlimit(1111)

n = int(input(''))
# n = 7

alkuluvut = {2: None}
for i in range(3, n * 2 + 5):
    is_alkuluku = True
    for j in alkuluvut:
        if i % j == 0:
            is_alkuluku = False

    if is_alkuluku:
        alkuluvut[i] = None
# print(alkuluvut)


# pairs = []
pairs = {}
pairs_by_first = {}
for i in range(1, n + 1):
    pairs_by_first[i] = {}
    for j in range(1, n + 1):
        if i + j in alkuluvut and i != j:
            pairs[(i, j)] = True
            pairs_by_first[i][(i, j)] = True
            # pairs.append((i, j))
# print(len(pairs))


def rec_find(pairs, remaining_depth, last_choice=None, solution=[], solution_hash={}):
    iterable = pairs.keys()
    if last_choice:
        iterable = pairs_by_first[last_choice[1]].keys()
    for choice in iterable:
        if last_choice and choice[0] != last_choice[1]:
            continue
        if choice[0] in solution_hash:
            continue
        if choice[1] in solution_hash:
            continue
        # if pairs[choice] == False:
        #     continue

        if remaining_depth == 2:
            if choice[0] + choice[1] in alkuluvut:
                return solution + list(choice)
        else:
            solution_hash[choice[0]] = None
            # pairs[choice] = False
            s = rec_find(
                pairs,
                remaining_depth - 1,
                last_choice=choice,
                solution=solution+[choice[0]],
                solution_hash=solution_hash
            )
            # pairs[choice] = True
            del solution_hash[choice[0]]
            if s:
                return s


solution = rec_find(pairs, n)
if solution:
    print(' '.join([str(i) for i in solution]))
else:
    print('No solution')

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
`2` view save

correct output
`1 2` view save

user output
`1 2` view save

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
`3` view save

correct output
`1 2 3` view save

user output
`1 2 3` view save

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
`4` view save

correct output
`1 2 3 4` view save

user output
`1 2 3 4` view save

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
`5` view save

correct output
`3 4 1 2 5` view save

user output
`1 4 3 2 5` view save

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
`6` view save

correct output
`3 4 1 2 5 6` view save

user output
`1 4 3 2 5 6` view save

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

input
`7` view save

correct output
`3 4 1 2 5 6 7` view save

user output
`1 2 3 4 7 6 5` view save

Test 7

Group: 1, 2, 3

Verdict: ACCEPTED

input
`8` view save

correct output
`7 6 5 2 1 4 3 8` view save

user output
`1 2 3 4 7 6 5 8` view save

Test 8

Group: 1, 2, 3

Verdict: ACCEPTED

input
`9` view save

correct output
`7 6 5 2 1 4 3 8 9` view save

user output
`1 2 3 4 7 6 5 8 9` view save

Test 9

Group: 1, 2, 3

Verdict: ACCEPTED

input
`10` view save

correct output
`7 6 5 2 1 4 3 8 9 10` view save

user output
`1 2 3 4 7 6 5 8 9 10` view save

Test 10

Group: 2, 3

Verdict: ACCEPTED

input
`19` view save

correct output
`17 14 3 8 15 16 13 6 5 2 1 4 9...` view save

user output
`1 2 3 4 7 6 5 8 9 10 13 16 15 ...` view save

Test 11

Group: 2, 3

Verdict: ACCEPTED

input
`56` view save

correct output
`55 54 53 50 51 52 49 48 13 28 ...` view save

user output
`1 2 3 4 7 6 5 8 9 10 13 16 15 ...` Truncated

Test 12

Group: 2, 3

Verdict: ACCEPTED

input
`70` view save

correct output
`67 4 1 2 9 32 35 38 65 66 61 4...` view save

user output
`1 2 3 4 7 6 5 8 9 10 13 16 15 ...` Truncated

Test 13

Group: 2, 3

Verdict: ACCEPTED

input
`76` view save

correct output
`73 66 61 42 59 54 53 50 51 52 ...` view save

user output
`1 2 3 4 7 6 5 8 9 10 13 16 15 ...` Truncated

Test 14

Group: 2, 3

Verdict: ACCEPTED

input
`90` view save

correct output
`87 86 11 18 29 44 45 16 55 58 ...` view save

user output
`1 2 3 4 7 6 5 8 9 10 13 16 15 ...` Truncated

Test 15

Group: 2, 3

Verdict: ACCEPTED

input
`100` view save

correct output
`97 96 95 78 25 82 81 56 71 68 ...` view save

user output
`1 2 3 4 7 6 5 8 9 10 13 16 15 ...` Truncated

Test 16

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
`154` view save

correct output
`151 6 5 92 137 134 149 84 143 ...` view save

user output
(empty)

Test 17

Group: 3

Verdict: ACCEPTED

input
`430` view save

correct output
`427 426 371 372 367 376 375 35...` view save

user output
`1 2 3 4 7 6 5 8 9 10 13 16 15 ...` Truncated

Test 18

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
`629` view save

correct output
`627 404 227 146 83 150 77 74 3...` view save

user output
(empty)

Test 19

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
`833` view save

correct output
`829 828 793 574 523 516 515 51...` view save

user output
(empty)

Test 20

Group: 3

Verdict: TIME LIMIT EXCEEDED

input
`885` view save

correct output
`883 724 723 878 881 726 721 71...` view save

user output
(empty)

Test 21

Group: 3

Verdict: ACCEPTED

input
`1000` view save

correct output
`997 996 737 884 995 492 991 20...` view save

user output
`1 2 3 4 7 6 5 8 9 10 13 16 15 ...` Truncated

Putka Open 2020 – 1/5

Lista

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Test 17

Test 18

Test 19

Test 20

Test 21

Tasks

Submissions (osku91)