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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		Scanner in = new Scanner(System.in);
  10. 		PrintWriter out = new PrintWriter(System.out);
  11.  
  12. 		double sum = 0;
  13. 		double numerator = 1, denominator = 1;
  14. 		int n = in.nextInt();
  15.  
  16. 		for (int i = 1; i <= n; i++) {
  17.             		denominator = pow(i,i-1);
  18.             		sum += (1.0*numerator)/denominator;
  19.             		numerator*=i;
  20.             	}
  21.             	System.out.println("Сумма: " + sum);
  22. 		System.out.println("Числитель: " + numerator);
  23. 		System.out.println("Знаменатель: " + denominator);
  24. 	}
  25. 	public static double pow(double number, int power)
  26. 	{
  27. 		double answer = 1;
  28.             	for (int i = 0; i < power; i++)
  29.             	{
  30.             		answer *= number;
  31.             	}
  32. 		return answer;
  33. 	}
  34. }
Success #stdin #stdout 0.07s 4386816KB
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stdin
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stdout
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Сумма: 1.7222222222222223
Числитель: 6.0
Знаменатель: 9.0
https://ideone.com/9j4p5Q
D2580 (Java)
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
secret

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