Submission #372255

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
372255	2021-02-27T10:35:41 Z	kutbilim_one	Odd-even (IZhO11_oddeven)	Java 11	Compilation error	0 ms	0 KB

oddeven

import java.util.*;
import java.math.*;

public class Main{
   public static void main(String args[]){
      Scanner cin = new Scanner(System.in);
      
      /// 2*n - floor( (1+ sqrt(8*n-7))/2 )
      BigInteger n = cin.nextBigInteger();
      BigInteger sqrtPart = n.multiply(BigInteger.valueOf(8)).subtract(BigInteger.valueOf(7)).sqrt().add(BigInteger.valueOf(1)).divide(BigInteger.valueOf(2));
      BigInteger res = n.multiply(BigInteger.valueOf(2)).subtract(sqrtPart);
      System.out.print(res);
      
      cin.close();
   }
}

Compilation message

oddeven.java:4: error: class Main is public, should be declared in a file named Main.java
public class Main{
       ^
1 error