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  1. import java.math.*;
  2. class M{
  3.   static int c(int n){
  4.     BigInteger p, a = p = BigInteger.TEN.pow(10010).multiply(new BigInteger("2"));
  5.     for(int i = 1; a.compareTo(BigInteger.ZERO) > 0; p = p.add(a)){
  6.       a = a.multiply(new BigInteger(i+"")).divide(new BigInteger((2 * i++ + 1)+""));
  7.     }
  8.     return (p+"").charAt(n+1) - 48;
  9.   }
  10.  
  11.   public static void main(String[] a){
  12.     System.out.print(c(0)+", ");
  13.     System.out.print(c(1)+", ");
  14.     System.out.print(c(2)+", ");
  15.     System.out.print(c(3)+", ");
  16.     System.out.print(c(10)+", ");
  17.     System.out.print(c(100)+", ");
  18.     System.out.print(c(599)+", ");
  19.     System.out.print(c(760)+", ");
  20.     System.out.print(c(1000)+", ");
  21.     System.out.print(c(10000));
  22.   }
  23. }
Success #stdin #stdout 4.76s 711680KB
comments ()
stdin 
Standard input is empty
stdout 
1, 4, 1, 5, 8, 8, 2, 4, 3, 5
https://ideone.com/eqlwsu
language:
Java (12.0.1)
created:
8 years ago
visibility:
public

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