waleed @ waleed-P17SM-A: ~ $ nano Good_morning_encryption.cpp
waleed @ waleed-P17SM-A: ~ $ g ++ Good_morning_encryption.cpp -o Good_morning_encryption.out
waleed @ waleed-P17SM-A: ~ $ ./Good_morning_encryption.out
Введите текст: waleed
Зашифрованный текст:
jnyrrq
waleed @ waleed-P17SM-A: ~ $ cat Good_morning_encryption.cpp
#include <iostream>
#include <string>
using namespace std;
int main() {
//the string that holds the user input
string text;
//x for the first counter than makes it keeps looping until it encrypts the user input
//len holds the value (int) of the length of the user input ( including spaces)
int x, len;
//simple console output
cout << "Enter your text:";
//gets the user input ( including spaces and saves it to the variable text
getline(cin, text);
//give the variable len the value of the user input length
len = (int)text.length();
//counter that makes it keep looping until it "encrypts" all of the user input (that's why it keeps looping while its less than len
for(x = 0; x < len; x++) {
//checks each letts (and spaces) in the user input (x is the number of the offset keep in mind that it starts from 0 and for example text[x] if the user input was waleed would be w since its text[0]
if (isalpha(text[x])) {
//converts each letter to small letter ( even though it can be done another way by making the check like this if (text[x] =='z' || text[x] == 'Z')
text[x] = tolower(text[x]);
//another counter that loops 13 times
for (int counter = 0; counter < 13; counter++) {
//it checks if the letts text[x] is z and if it is it will make it a
if (text[x] == 'z') {
text[x] = 'a';
}
//if its not z it will keeps increamenting (using the loop 13 times)
else {
text[x]++;
}
}
}
}
//prints out the final value of text
cout << "Encrypted text:\n" << text << endl;
//return 0 (because the the main function is an int so it must return an integer value
return 0;
}
Примечание: это называется шифрование caeser cipher, оно работает так:
АБВГДЕЖЗИКЛМНОПРСТУФХЧШЭЮЯ
NOPQRSTUVWXYZABCDEFGHIJKLM
так, например, меня зовут Валид
это будет записано как: JNYRRQ
так что просто добавьте 13 букв к каждой букве
Я надеюсь, что это помогло