How do I swap these digits?
This program reads a four-digit integer, and encrypts it. I have had to replace each digit by the sum of that digit plus 7 modulus 10. The final step is the swap digit1 with digit3 and swap digit2 with digit4. But I am not quite sure how to do that. Could somebody help me out please?
Code:
#include<iostream>
#include<conio>
using namespace std;
int main(int argc, char* argv[])
{
int Integer;
int Divider;
int Digit1, Digit2, Digit3, Digit4;
cout << "Enter a four-digit integer: ";
cin >> Integer;
Divider = 1000;
Digit1 = Integer / Divider;
Integer = Integer % Divider;
Divider = 100;
Digit2 = Integer / Divider;
Integer = Integer % Divider;
Divider = 10;
Digit3 = Integer / Divider;
Integer = Integer % Divider;
Divider = 1;
Digit4 = Integer / Divider;
Digit1 = (Digit1 + 7) % 10;
Digit2 = (Digit2 + 7) % 10;
Digit3 = (Digit3 + 7) % 10;
Digit4 = (Digit4 + 7) % 10;
cout << Digit1 << Digit2 << Digit3 << Digit4;
getch();
return 0;
}
