Package net.n1da.dev.euler

Class PE0020

java.lang.Object

net.n1da.dev.euler.core.Problem

net.n1da.dev.euler.PE0020

All Implemented Interfaces:

Solvable

public class PE0020
extends Problem

Solution for problem 20 "Factorial digit sum" completed on Sun, 24 May 2015, 05:55.

Since:

23.05.2015 23:14:09

Author:

Nico Danneberg

See Also:

Problem @ Project Euler, Solution @ Ni-Da-Net

Field Summary

Fields inherited from class net.n1da.dev.euler.core.Problem

number, title

Constructor Summary

Constructors

Constructor	Description
PE0020()	A simple constructor to set number and title.

Method Summary

Modifier and Type	Method	Description
java.lang.String	solve()	Runs two nested loops to calculate the factorial as sum of large numbers.

Methods inherited from class net.n1da.dev.euler.core.Problem

finish, getResult, getRuntime, prepare, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

PE0020

public PE0020()

A simple constructor to set number and title.

Method Detail

solve

public java.lang.String solve()

Runs two nested loops to calculate the factorial as sum of large numbers.

Returns:

the sum of digits of the wanted factorial

See Also:

LargeNumber.sumOfDigits()