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Added solution for problem 7
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@@ -30,7 +30,7 @@ namespace ProjectEulerCS{
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public class ProblemSelection{
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//Holds the valid problem numbers
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private static readonly List<int> _PROBLEM_NUMBERS = new List<int>()
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{0, 1, 2, 3, 4, 5, 6};
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{0, 1, 2, 3, 4, 5, 6, 7};
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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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}
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@@ -45,6 +45,7 @@ namespace ProjectEulerCS{
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case 4: problem = new Problem4(); break;
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case 5: problem = new Problem5(); break;
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case 6: problem = new Problem6(); break;
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case 7: problem = new Problem7(); break;
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}
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return problem;
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}
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83
ProjectEulerCS/Problems/Problem7.cs
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83
ProjectEulerCS/Problems/Problem7.cs
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@@ -0,0 +1,83 @@
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//ProjectEuler/ProjectEulerCS/src/Problems/Problem7.cs
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//Matthew Ellison
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// Created: 08-23-20
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//Modified: 08-23-20
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//What is the 10001th prime number?
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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) 2020 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 Problem7 : Problem{
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//Variables
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//Static variables
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private const long NUMBER_OF_PRIMES = 10001; //The number of primes we are trying to get
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//Instance variables
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private List<long> primes;
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public long prime{
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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 primes[primes.Count - 1];
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}
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}
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//Functions
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//Constructor
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public Problem7() : base("What is the 10001th prime number?"){
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primes = new List<long>();
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}
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//Operatinal 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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//Setup the variables
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primes = mee.Algorithms.getNumPrimes(NUMBER_OF_PRIMES); //Holds the prime numbers
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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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//Save the results
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_result = "The " + NUMBER_OF_PRIMES + "th prime number is " + primes[primes.Count - 1];
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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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primes.Clear();
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}
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}
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}
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/* Results:
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The 10001th prime number is 104743
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It took an average of 3.559 milliseconds to run this problem through 100 iterations
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*/
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