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Added solution to problem 36
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@@ -33,7 +33,7 @@ namespace ProjectEulerCS{
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{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
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{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
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10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
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10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
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20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
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20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
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30, 31, 32, 33, 34, 35, 67};
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30, 31, 32, 33, 34, 35, 36, 67};
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public static System.Collections.Generic.List<int> PROBLEM_NUMBERS{
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public static System.Collections.Generic.List<int> PROBLEM_NUMBERS{
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get { return _PROBLEM_NUMBERS; }
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get { return _PROBLEM_NUMBERS; }
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}
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}
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@@ -77,6 +77,7 @@ namespace ProjectEulerCS{
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case 33: problem = new Problem33(); break;
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case 33: problem = new Problem33(); break;
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case 34: problem = new Problem34(); break;
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case 34: problem = new Problem34(); break;
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case 35: problem = new Problem35(); break;
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case 35: problem = new Problem35(); break;
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case 36: problem = new Problem36(); break;
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case 67: problem = new Problem67(); break;
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case 67: problem = new Problem67(); break;
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}
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}
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return problem;
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return problem;
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113
ProjectEulerCS/Problems/Problem36.cs
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113
ProjectEulerCS/Problems/Problem36.cs
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@@ -0,0 +1,113 @@
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//ProjectEuler/ProjectEulerCS/src/Problems/Problem36.cs
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//Matthew Ellison
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// Created: 06-29-21
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//Modified: 06-29-21
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//Find the sum of all numbers, less than one million, which are palindromic in base 10 and base 2.
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//Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/CSClasses
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/*
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Copyright (C) 2021 Matthew Ellison
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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using System.Collections.Generic;
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namespace ProjectEulerCS.Problems{
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public class Problem36 : Problem{
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//Variables
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//Static variables
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private static readonly int MAX_NUM = 999999; //The largest number that will be checked
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//Instance variables
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private List<int> palindromes; //All numbers that are palindromes in base 10 and 2
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private int sum; //The sum of all elements in the list of palindromes
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//Gets
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//The results of the problem
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public override string Result{
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get{
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if(!solved){
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throw new Unsolved();
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}
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return $"The sum of all base 10 and base 2 palindromic numbers < {MAX_NUM} is {sum}";
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}
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}
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public List<int> Palindromes{
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get{
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if(!solved){
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throw new Unsolved();
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}
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return palindromes;
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}
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}
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public int SumOfPalindromes{
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get{
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if(!solved){
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throw new Unsolved();
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}
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return sum;
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}
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}
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//Functions
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//Constructor
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public Problem36() : base("Find the sum of all numbers, less than one million, which are palindromic in base 10 and base 2."){
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palindromes = new List<int>();
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sum = 0;
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}
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//Operational functions
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//Solve the problem
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public override void Solve(){
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//If the problem has already been solved do nothing and end the function
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if(solved){
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return;
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}
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//Start the timer
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timer.Start();
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//Start with 1, check if it is a palindrome in base 10 and 2, and continue to MAX_NUM
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for(int num = 1;num < MAX_NUM;++num){
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//Check if num is a palindrome
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if(mee.Algorithms.IsPalindrome(num.ToString())){
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//Convert num to base 2 and see if that is a palindrome
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string binNum = mee.Algorithms.ToBin(num);
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if(mee.Algorithms.IsPalindrome(binNum)){
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//Add num to the list of palindromes
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palindromes.Add(num);
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}
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}
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}
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//Get the sum of all palindromes in the list
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sum = mee.Algorithms.GetSum(palindromes);
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//Stop the timer
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timer.Stop();
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//Throw a flag to show the problem is solved
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solved = true;
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}
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//Reset the problem so it can be run again
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public override void Reset(){
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base.Reset();
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palindromes.Clear();
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sum = 0;
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}
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}
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}
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/* Results:
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The sum of all base 10 and base 2 palindromic numbers < 999999 is 872187
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It took an average of 140.447 milliseconds to run this problem through 100 iterations
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*/
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