CSES - Datatähti 2018 alku - Results
Submission details
Task:Kyselyt
Sender:tuomask
Submission time:2017-10-03 21:20:04 +0300
Language:Java
Status:READY
Result:12
Feedback
groupverdictscore
#1ACCEPTED12
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.20 s1details
#2--2details
#3--3details

Code

import java.util.*;
/*
 * Datatähti 2018
 * Tuomas Karjalainen, Nurmeksen lukio
 */
public class Kyselyt {
  public static void main(String[] args) {
    Scanner input = new Scanner(System.in);
    int queries = Integer.parseInt(input.nextLine());
    while (queries-- > 0) {
      long k = Long.parseLong(input.nextLine());
      System.out.println(query(k));
    }
  }

  private static char query(long k) {
    long index = 1;
    long currentNumber = 1;
    while (index + numberLength(currentNumber) <= k) {
      index += numberLength(currentNumber);
      currentNumber++;
    }
    return Long.toString(currentNumber).charAt((int)(k - index));
  }

  private static long numberLength(long number) {
    long length = 0;
    while (number > 0) {
      number /= 10;
      length++;
    }
    return length;
  }
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
1000
582
214
723
273
...

correct output
0
1
7
7
6
...

user output
0
1
7
7
6
...
Truncated

Test 2

Group: 2

Verdict:

input
1000
615664
916441
627600
279508
...

correct output
1
2
3
2
2
...

user output
(empty)

Test 3

Group: 3

Verdict:

input
1000
672274832941907421
260504693279721732
646999966092970935
100853063389774434
...

correct output
7
2
2
0
9
...

user output
(empty)