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// Name: msglm
// Date:
// Program Name:
// Description:
#include <iostream>
#include <string>
#include <iomanip>
using namespace std;
int main() {
//Variable declaration
int num;
//Almost opted for a unsigned long long, but the imprecision with using values too high was too great. Floating point precision is king in this regard.
double output;
char again;
bool repeat = true;
//Program title and description for the user
cout << "Title: Find Factorial" << endl << "Description: Given a non-zero number, print its factorial" << endl;
while(repeat) {
// User input
cout << "Input the non-negative integar you'd like to find the factorial of: ";
cin >> num;
// Calculations
if (num < 0) {
cout << "Error! The number you inputted was negative!";
} else if (num == 0) {
output = 0;
} else {
output = 1;
for(int i = 1; i <= num; i++) {
output = i * output;
}
}
// Output to the screen
cout << "The Factorial of " << num << " is " << fixed << setprecision(0) << output << endl;
//Go Again
cout << "This program supports running again, would you like to run again? (y/n): ";
cin >> again;
if (again == 'y' || again == 'Y') {
repeat = true;
cout << "\033[2J\033[1;1H";
} else {
repeat = false;
}
}
return 0;
}
/*This program is free software: you can redistribute it and/or modify it under the terms of the GNU 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 General Public License for more details.
* You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
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