CSES - Datatähti 2018 peili - Results
Submission details
Task:Kyselyt
Sender:b10011
Submission time:2017-10-03 20:56:45 +0300
Language:Python3
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.45 s1details
#20.80 s2details
#3--3details

Code

from decimal import *
import math

#getcontext().rounding=ROUND_CEILING
#getcontext().prec=28

def calculate(position):
    subposition = Decimal(repr(position))
    numbers = Decimal(repr(1))

    while subposition > 9*(10**(numbers-1))*numbers:
        subposition -= 9*(10**(numbers-1))*numbers
        numbers += 1

    subposition = subposition/numbers
    subrounded = math.ceil(subposition)

    index = int(numbers - Decimal((subrounded-subposition) * numbers).quantize(Decimal("1."), rounding=ROUND_UP) - 1)

    for i in range(0, int(numbers-1)):
        subrounded += 9*(10**i)

    return str(subrounded)[index]

list = []
 
count = int(input())
for i in range(0, count):
    list.append(calculate(int(input())))
 
for i in range(0, count):
    print(str(list[i]))

Test details

Test 1

Group: 1

Verdict:

input
1000
582
214
723
273
...

correct output
0
1
7
7
6
...

user output
0
8
7
7
6
...

Test 2

Group: 2

Verdict:

input
1000
615664
916441
627600
279508
...

correct output
1
2
3
2
2
...

user output
1
2
3
2
2
...

Test 3

Group: 3

Verdict:

input
1000
672274832941907421
260504693279721732
646999966092970935
100853063389774434
...

correct output
7
2
2
0
9
...

user output
(empty)