CSES - Datatähti 2023 alku - Results
Submission details
Task:Kertoma
Sender:Leipaviipale
Submission time:2022-11-04 17:07:38 +0200
Language:Python3 (CPython3)
Status:READY
Result:46
Feedback
groupverdictscore
#1ACCEPTED22
#2ACCEPTED24
#30
Test results
testverdicttimegroup
#1ACCEPTED0.28 s1, 2, 3details
#2ACCEPTED0.28 s1, 2, 3details
#3ACCEPTED0.28 s1, 2, 3details
#4ACCEPTED0.28 s1, 2, 3details
#5ACCEPTED0.28 s1, 2, 3details
#6ACCEPTED0.28 s1, 2, 3details
#7ACCEPTED0.28 s2, 3details
#8ACCEPTED0.28 s2, 3details
#9ACCEPTED0.28 s2, 3details
#10ACCEPTED0.28 s2, 3details
#11ACCEPTED0.29 s3details
#12ACCEPTED0.30 s3details
#13ACCEPTED0.60 s3details
#14--3details
#15--3details
#16--3details

Code

import math
# 0 0 1 => 2
# 1 1 1 0 0 0 0 0 0 0 => 5
# 42 25 24 16 15 16 21 14 17 16 => 123
# 2 0 1 1 0 0 1 0 2 0 => 10
def main():
input_array = get_input()
INPUT_DIGIT_COUNT = sum(input_array)
# magic number that represents the maximum amount of digits, if you calculate (10*10^5)!
# 10*10^5 means the maxkimum amount of input digits in subtask 3
UPPER_X_BOUND = 210000
min_guess = 2
max_guess = UPPER_X_BOUND
while(True):
average = round((max_guess - min_guess) / 2) + min_guess
guess_digit_count = get_factorial_digit_count(average)
if (guess_digit_count < INPUT_DIGIT_COUNT):
min_guess = average
elif (guess_digit_count > INPUT_DIGIT_COUNT):
max_guess = average
else:
result = increase_accuracy(average, input_array, INPUT_DIGIT_COUNT)
print(result)
break
def get_input():
x = input().split()
return [eval(i) for i in x]
def get_factorial_digit_count(number : int) -> int:
# if negative or less than 2 => automatically has only 1 digit
if (number < 2): return 1
return math.floor(math.log10(math.factorial(number))) + 1
def count_specific_digit(number : int, digit : str) -> int:
return str(number).count(str(digit))
# check if number matches input array
def try_match(guess : int, input_array) -> bool:
factorial = math.factorial(guess)
for i in range(len(input_array)):
count = count_specific_digit(factorial, i)
if (input_array[i] != count):
return -1
if (i == len(input_array) - 1):
return guess
def increase_accuracy(guess : int, input_array, input_digit_count : int) -> int:
# digit count should not match even the close numbers
if (guess > 200): return guess
if (try_match(guess, input_array) != -1):
return guess
wannabe_guess = guess - 1
while (get_factorial_digit_count(wannabe_guess) == input_digit_count):
if (try_match(wannabe_guess, input_array)):
return wannabe_guess
wannabe_guess -= 1
wannabe_guess = guess + 1
while (get_factorial_digit_count(wannabe_guess) == input_digit_count):
if (try_match(wannabe_guess, input_array)):
return wannabe_guess
wannabe_guess += 1
raise ValueError(f"Cannot find value for input array {input_array}")
main()

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
0 0 1 0 0 0 0 0 0 0

correct output
2

user output
2

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
0 0 0 0 0 0 1 0 0 0

correct output
3

user output
3

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
0 0 1 0 1 0 0 0 0 0

correct output
4

user output
4

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
2 0 1 1 0 0 1 0 2 0

correct output
10

user output
10

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
9 3 1 1 2 2 3 1 6 1

correct output
27

user output
27

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

input
10 4 3 4 3 2 2 4 3 7

correct output
36

user output
36

Test 7

Group: 2, 3

Verdict: ACCEPTED

input
71 53 36 30 25 29 42 24 34 29

correct output
199

user output
199

Test 8

Group: 2, 3

Verdict: ACCEPTED

input
71 33 46 38 27 45 36 21 35 35

correct output
205

user output
205

Test 9

Group: 2, 3

Verdict: ACCEPTED

input
93 38 35 26 43 54 38 25 41 34

correct output
222

user output
222

Test 10

Group: 2, 3

Verdict: ACCEPTED

input
100 33 33 45 36 43 38 54 56 36

correct output
242

user output
242

Test 11

Group: 3

Verdict: ACCEPTED

input
3419 1797 1845 1849 1879 1791 ...

correct output
5959

user output
5959

Test 12

Group: 3

Verdict: ACCEPTED

input
4776 2695 2709 2781 2616 2753 ...

correct output
8391

user output
8391

Test 13

Group: 3

Verdict: ACCEPTED

input
20097 12282 12229 12214 12406 ...

correct output
32001

user output
32001

Test 14

Group: 3

Verdict:

input
47934 29918 29878 29713 29984 ...

correct output
71718

user output
(empty)

Test 15

Group: 3

Verdict:

input
84691 54156 54277 54533 54296 ...

correct output
123123

user output
(empty)

Test 16

Group: 3

Verdict:

input
99098 63339 63878 64182 63904 ...

correct output
142663

user output
(empty)