Coding Ceaser Chiper Bahasa C++

 

#include<iostream>

using namespace std;

int main () {

int n, k, mod, counter = 0, kurang, hasilmod;

char alfabet = 'a', huruf;

cout << "\n===== Algoritma Ceaser Chiper =====" << endl;

cout << "--- Chipertext to Plaintext ---" << endl;

cout << "\nK = ";

cin >> k;

cout << "Modulus = ";

cin >> mod;

cout << "Masukkan Banyak Huruf = ";

cin >> n;

for(int i = 1; i <= n; i++) {

cout << "\nMasukkan Huruf = ";

cin >> huruf;

counter = 0;

for(alfabet = 'a'; alfabet <= 'z'; alfabet++) {

if(huruf == alfabet) {

cout << "Posisi Huruf ke-" << counter << endl;

kurang = counter - k;

if(kurang < 0) {

hasilmod = ((kurang % mod) + mod) % mod;

} else {

hasilmod = kurang % mod;

}

}

counter++;

}

cout << ">> Hasil Mod = " << hasilmod << endl;

}

}