Submission details
Task:Counter
Sender:kookinnam
Submission time:2025-11-26 16:48:42 +0200
Language:Python3 (PyPy3)
Status:READY
Result:
Test results
testverdicttime
#1ACCEPTED0.04 sdetails
#2ACCEPTED0.04 sdetails
#30.04 sdetails
#40.04 sdetails
#50.04 sdetails
#60.05 sdetails
#70.04 sdetails
#80.04 sdetails
#9ACCEPTED0.04 sdetails
#100.04 sdetails
#11ACCEPTED0.04 sdetails
#120.04 sdetails
#130.04 sdetails
#140.04 sdetails
#150.04 sdetails
#160.04 sdetails
#170.04 sdetails
#180.04 sdetails
#190.04 sdetails
#200.04 sdetails
#210.04 sdetails
#220.04 sdetails
#230.04 sdetails
#240.04 sdetails
#250.04 sdetails
#260.04 sdetails
#270.05 sdetails

Code

def solve(n):
    if n == 0: return 0
    dp = [0] * (n + 1)
  
    # Base cases
    dp[0] = 1

    for i in range(2, n + 1):
        if i - 2 < 0:
            dp[i] = dp[i + 11] + 1
        elif i + 11 > n:
            dp[i] = dp[i - 2] + 1
        else:
            dp[i] = dp[i + 11] + dp[i - 2]; 
  
    return dp[n] + 1 if dp[n] != 0 else -1

n = int(input())
print(solve(n))

Test details

Test 1

Verdict: ACCEPTED

input
0

correct output
0

user output
0

Test 2

Verdict: ACCEPTED

input
1

correct output
-1

user output
-1

Test 3

Verdict:

input
2

correct output
-1

user output
3

Test 4

Verdict:

input
10

correct output
-1

user output
7

Test 5

Verdict:

input
11

correct output
1

user output
6

Test 6

Verdict:

input
23

correct output
8

user output
7

Test 7

Verdict:

input
90

correct output
20

user output
8

Test 8

Verdict:

input
8

correct output
-1

user output
6

Test 9

Verdict: ACCEPTED

input
88

correct output
8

user output
8

Test 10

Verdict:

input
2

correct output
-1

user output
3

Test 11

Verdict: ACCEPTED

input
62

correct output
8

user output
8

Test 12

Verdict:

input
53

correct output
6

user output
7

Test 13

Verdict:

input
55

correct output
5

user output
7

Test 14

Verdict:

input
84

correct output
10

user output
8

Test 15

Verdict:

input
72

correct output
16

user output
8

Test 16

Verdict:

input
71

correct output
10

user output
7

Test 17

Verdict:

input
16

correct output
5

user output
8

Test 18

Verdict:

input
86

correct output
9

user output
8

Test 19

Verdict:

input
81

correct output
18

user output
7

Test 20

Verdict:

input
19

correct output
10

user output
7

Test 21

Verdict:

input
21

correct output
9

user output
7

Test 22

Verdict:

input
249

correct output
25

user output
7

Test 23

Verdict:

input
835

correct output
83

user output
7

Test 24

Verdict:

input
94

correct output
18

user output
8

Test 25

Verdict:

input
10000

correct output
915

user output
8

Test 26

Verdict:

input
100000

correct output
9098

user output
8

Test 27

Verdict:

input
1000000

correct output
90915

user output
8