diff --git a/src/main/java/mattrixwv/ProjectEuler/Problems/Problem6.java b/src/main/java/mattrixwv/ProjectEuler/Problems/Problem6.java index 3954a3f..7d90cf3 100644 --- a/src/main/java/mattrixwv/ProjectEuler/Problems/Problem6.java +++ b/src/main/java/mattrixwv/ProjectEuler/Problems/Problem6.java @@ -1,11 +1,11 @@ //ProjectEuler/Java/Problem6.java //Matthew Ellison // Created: 03-01-19 -//Modified: 03-28-19 +//Modified: 06-15-20 //Find the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum. //Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses /* - Copyright (C) 2019 Matthew Ellison + Copyright (C) 2020 Matthew Ellison This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by @@ -25,9 +25,9 @@ package mattrixwv.ProjectEuler.Problems; public class Problem6 extends Problem{ //The first number that needs to be counted - private static final Integer START_NUM = 1; + private static final int START_NUM = 1; //The last number that needs to be counted - private static final Integer END_NUM = 100; + private static final int END_NUM = 100; public Problem6(){ super("Find the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum."); @@ -37,11 +37,11 @@ public class Problem6 extends Problem{ timer.start(); //Setup the variables - Long sumOfSquares = 0L; //Holds the sum of the squares of all the numbers - Long squareOfSum = 0L; //Holds the square of the sum of all the numbers + long sumOfSquares = 0L; //Holds the sum of the squares of all the numbers + long squareOfSum = 0L; //Holds the square of the sum of all the numbers //Run through all numbers and add them to the appropriate sums - for(Integer currentNum = START_NUM;currentNum <= END_NUM;++currentNum){ + for(int currentNum = START_NUM;currentNum <= END_NUM;++currentNum){ sumOfSquares += (currentNum * currentNum); //Add the square to the correct variable squareOfSum += currentNum; //Add the number to the correct variable to squaring later } @@ -58,5 +58,5 @@ public class Problem6 extends Problem{ /* Results: The difference between the sum of the squares and the square of the sum of all numbers from 1-100 is 25164150 -It took 51.999 microseconds to solve this problem. +It took 3.100 microseconds to solve this problem. */