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Updated comments and made sure style was consistent
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@@ -1,14 +1,14 @@
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//ProjectEuler/C++/Source/Problem20.cpp
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//ProjectEuler/ProjectEulerCPP/Source/Problem20.cpp
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//Matthew Ellison
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// Created: 11-07-18
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//Modified: 07-14-19
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//Modified: 07-09-20
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//What is the sum of the digits of 100!?
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//Unless otherwise listed all non-standard includes are my own creation and available from https://bibucket.org/Mattrixwv/myClasses
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//This file contains a header from the gmp library. The library is used for large integers.
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//You can find more information about them at https://gmplib.org/
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//When compiling this file you need to have the gmp library installed as well as linking the libraries to your executable using the -lgmpxx and -lgmp flags
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/*
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Copyright (C) 2019 Matthew Ellison
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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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@@ -33,11 +33,13 @@
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#include "../Headers/Problem20.hpp"
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//Constructor
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Problem20::Problem20() : Problem("What is the sum of the digits of 100!?"), num(1), sum(0){
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//num Starts at 1 because multiplication is performed on it
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//sum starts at 0 because addition is performed on it
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}
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//Solve the problem
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void Problem20::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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@@ -66,6 +68,14 @@ void Problem20::solve(){
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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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void Problem20::reset(){
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Problem::reset();
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sum = 0;
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num = 1;
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}
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//Return a string with the solution to the problem
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std::string Problem20::getString() const{
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//If the problem hasn't been solved throw an exception
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if(!solved){
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@@ -78,6 +88,7 @@ std::string Problem20::getString() const{
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return results.str();
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}
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//Returns the number 100!
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mpz_class Problem20::getNumber() const{
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//If the problem hasn't been solved throw an exception
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if(!solved){
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@@ -86,6 +97,7 @@ mpz_class Problem20::getNumber() const{
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return num;
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}
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//Returns the number 100! in a string
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std::string Problem20::getNumberString() const{
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//If the problem hasn't been solved throw an exception
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if(!solved){
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@@ -94,6 +106,7 @@ std::string Problem20::getNumberString() const{
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return num.get_str();
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}
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//Returns the sum of the digits of 100!
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uint64_t Problem20::getSum() const{
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//If the problem hasn't been solved throw an exception
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if(!solved){
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@@ -101,9 +114,3 @@ uint64_t Problem20::getSum() const{
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}
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return sum;
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}
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void Problem20::reset(){
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Problem::reset();
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sum = 0;
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num = 1;
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}
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