CSES - Putka Open 2020 – 1/5

CSES - Putka Open 2020 – 1/5 - Results

Submission details
Task:	Lista
Sender:	JiK
Submission time:	2020-09-05 02:17:31 +0300
Language:	PyPy3
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	0.12 s	1, 2, 3	details
#2	ACCEPTED	0.12 s	1, 2, 3	details
#3	ACCEPTED	0.12 s	1, 2, 3	details
#4	ACCEPTED	0.12 s	1, 2, 3	details
#5	ACCEPTED	0.12 s	1, 2, 3	details
#6	ACCEPTED	0.12 s	1, 2, 3	details
#7	ACCEPTED	0.12 s	1, 2, 3	details
#8	ACCEPTED	0.12 s	1, 2, 3	details
#9	ACCEPTED	0.12 s	1, 2, 3	details
#10	ACCEPTED	0.13 s	2, 3	details
#11	ACCEPTED	0.14 s	2, 3	details
#12	ACCEPTED	0.16 s	2, 3	details
#13	ACCEPTED	0.14 s	2, 3	details
#14	ACCEPTED	0.15 s	2, 3	details
#15	ACCEPTED	0.15 s	2, 3	details
#16	ACCEPTED	0.22 s	3	details
#17	ACCEPTED	0.26 s	3	details
#18	ACCEPTED	0.43 s	3	details
#19	TIME LIMIT EXCEEDED	--	3	details
#20	ACCEPTED	0.52 s	3	details
#21	ACCEPTED	0.46 s	3	details

Code

import sys
import random

#n = int(sys.argv[1])
n = int(sys.stdin.read())

def isprime(x):
 if x<2:
  return False
 for i in range(2,int(x**.5+1)):
  if x%i == 0:
   return False
 #print(x)
 return True

ISPRIME = [isprime(k) for k in range(2*n)]

def pen(x):
 return sum(not isprime(x[i] + x[i+1]) for i in range(len(x)-1))

x = list(range(1,n+1))

while True:
 j = 0
 splitpoints = [0]
 for i in range(n-1):
  if not isprime(x[i] + x[i+1]):
   splitpoints.append(i+1)
 splitpoints.append(n)

 if len(splitpoints)==2:
  break

 splitpoints.append(random.randint(0,n))

 splitpoints = sorted(splitpoints)

 splits = [x[splitpoints[i]:splitpoints[i+1]] for i in range(len(splitpoints)-1)]

 random.shuffle(splits)
 #print (splits)
 x = [i for sublist in splits for i in sublist]

while pen(x) > 0:
 #print (x, pen(x))
 random.shuffle(x)


#print ('"%s",' % (" ".join(map(str, x))))
print (" ".join(map(str, x)))

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
`3 4 1 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
`5 6 1 2 3 4` 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
`3 4 1 2 5 6 7` 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
`8 3 4 1 2 5 6 7` 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
`7 6 1 4 3 2 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
`9 10 1 2 3 4 7 6 5 8` 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 16 13 18 19 10 3 14 17 12 5 ...` 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
`14 53 54 55 46 13 18 19 28 31 ...` view save

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
`7 30 23 24 65 62 9 10 69 70 67...` view save

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
`26 57 4 69 70 33 34 67 36 53 5...` view save

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
`73 54 55 24 5 56 23 78 79 72 3...` view save

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
`15 16 85 46 55 72 25 48 89 18 ...` view save

Test 16

Group: 3

Verdict: ACCEPTED

input
`154` view save

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

user output
`132 107 66 73 30 59 134 89 60 ...` view save

Test 17

Group: 3

Verdict: ACCEPTED

input
`430` view save

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

user output
`44 45 266 143 108 311 276 383 ...` view save

Test 18

Group: 3

Verdict: ACCEPTED

input
`629` view save

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

user output
`301 556 321 298 499 262 345 27...` view save

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: ACCEPTED

input
`885` view save

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

user output
`459 274 535 874 189 250 259 67...` view save

Test 21

Group: 3

Verdict: ACCEPTED

input
`1000` view save

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

user output
`568 241 768 781 400 213 448 43...` view save

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 (JiK)