Added problem 3

src/Problems.rs

@@ -1,3 +1,11 @@
+//ProjectEulerRust/src/Problems.rs
+//Matthew Ellison
+// Created: 06-11-20
+//Modified: 06-13-20
+//This file just forwards all the problem modules
+
+
 pub mod Answer;
 pub mod Problem1;
 pub mod Problem2;
+pub mod Problem3;

src/Problems/Answer.rs

@@ -1,3 +1,7 @@
+//ProjectEulerRust/src/Problems/Answer.rs
+//Matthew Ellison
+// Created: 06-11-20
+//Modified: 06-13-20
 //A structure to hold the answer to the problem
 pub struct Answer{
 	result: String,

src/Problems/Problem1.rs

@@ -1,6 +1,30 @@
-extern crate myClasses;
+//ProjectEulerRust/src/Problems/Problems1.rs
+//Matthew Ellison
+// Created: 06-12-20
+//Modified: 06-13-20
+//What is the sum of all the multiples of 3 or 5 that are less than 1000
+//Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
+/*
+	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
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Lesser General Public License for more details.
+
+	You should have received a copy of the GNU Lesser General Public License
+	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+
+extern crate myClasses;
+use crate::Problems::Answer::Answer;
 
-pub use crate::Problems::Answer::Answer;
 
 pub fn getDescription() -> &'static str{
 	"What is the sum of all the multiples of 3 or 5 that are less than 1000"
@@ -25,3 +49,7 @@ pub fn solve() -> Answer{
 	//Return the answer
 	return Answer::new("The sum of all numbers < 1000 is ".to_string() + &fullSum.to_string(), timer.getString());
 }
+
+/* Results:
+
+*/

src/Problems/Problem2.rs

@@ -1,6 +1,28 @@
+//ProjectEulerRust/src/Problems/Problems2.rs
+//Matthew Ellison
+// Created: 06-12-20
+//Modified: 06-13-20
+//The sum of the even Fibonacci numbers less than 4,000,000
+//Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
+/*
+	Copyright (C) 2019  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
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Lesser General Public License for more details.
+
+	You should have received a copy of the GNU Lesser General Public License
+	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 
 extern crate myClasses;
-
 use crate::Problems::Answer::Answer;
 
 pub fn getDescription() -> &'static str{
@@ -25,3 +47,7 @@ pub fn solve() -> Answer{
 	//Return the answer
 	return Answer::new("The sum of all even fibonacci numbers <= 3999999 is ".to_string() + &sum.to_string(), timer.getString());
 }
+
+/* Results:
+
+*/

src/Problems/Problem3.rs

@@ -0,0 +1,55 @@
+//ProjectEulerRust/src/Problems/Problems3.rs
+//Matthew Ellison
+// Created: 06-13-20
+//Modified: 06-13-20
+//The largest prime factor of 600851475143
+//Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/JavaClasses
+/*
+	Copyright (C) 2019  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
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Lesser General Public License for more details.
+
+	You should have received a copy of the GNU Lesser General Public License
+	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+
+extern crate myClasses;
+use crate::Problems::Answer::Answer;
+
+extern crate num;
+
+
+pub fn getDescription() -> String{
+	"What is the largest prime factor of 600851475143?".to_string()
+}
+
+pub fn solve() -> Answer{
+	//Setup the number
+	let number = "600851475143".parse::<num::BigInt>().unwrap();
+	//Start the timer
+	let mut timer = myClasses::Stopwatch::Stopwatch::new();
+	timer.start();
+
+	//Get all the factors of the number
+	let factors = myClasses::Algorithms::getFactorsBig(num::BigInt::new(number.sign(), number.to_u32_digits().1));
+	//The last element should be the largest factor
+
+	//Stop the timer
+	timer.stop();
+
+	//Save the results
+	return Answer::new(format!("The largest factor of the number {} is {}", number, factors.last().unwrap()), timer.getString());
+}
+
+/* Results:
+
+*/

src/main.rs

@@ -1,3 +1,10 @@
+//ProjectEulerRust/src/main.rs
+//Matthew Ellison
+// Created: 06-11-20
+//Modified: 06-11-20
+//This is a driver function for the Project Euler solutions in Rust
+
+
 #![allow(non_snake_case)]
 #![allow(unused_parens)]
 #![allow(non_upper_case_globals)]
@@ -9,7 +16,7 @@ mod Problems;
 #[derive(PartialEq)]
 enum Selections{EMPTY, SOLVE, DESCRIPTION, LIST, EXIT, SIZE}
 
-static problemNumbers: [u32; 3] = [0, 1, 2];
+static problemNumbers: [u32; 4] = [0, 1, 2, 3];
 
 fn main(){
 	let mut selection = Selections::EMPTY;
@@ -114,6 +121,10 @@ fn solveProblem(problemNumber: u32){
 		println!("{}", Problems::Problem2::getDescription());
 		println!("{}", Problems::Problem2::solve());
 	}
+	else if(problemNumber == 3){
+		println!("{}", Problems::Problem3::getDescription());
+		println!("{}", Problems::Problem3::solve());
+	}
 }
 fn descriptionMenu(){
 	//Give some extra space to print the description
@@ -145,6 +156,9 @@ fn printDescription(problemNumber: u32){
 	else if(problemNumber == 2){
 		println!("{}", Problems::Problem2::getDescription());
 	}
+	else if(problemNumber == 3){
+		println!("{}", Problems::Problem3::getDescription());
+	}
 }
 fn getProblemNumber() -> u32{
 	println!("Enter a problem number: ");