cipher
I need help with a cipher assignment where the default map is set to zywvutsrqponmlkjihgfedcba
any help will be appreciated
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cout << " Encryption Cipher\n";
cout << " Enter a word: \n";
cin >> word;
size = word.size();
cout << " Your word is: " << word << endl;
cout << " Enter a map ( input 'default' to select default) \n";
cin >> map;
if(map == "default")
{
map = "zywvutsrqponmlkjihgfedcba";
}
for(int temp =0; temp < size; temp++)
{
if( word[temp] >= 'a' && word[temp] <= 'z')
{
word[temp] = (tolower(word[temp]));
word[temp] += map[temp] - 'z';
word[temp]++;
}
else
{
cout << " Error\n";
return 0;
}
}
cout << " Encrypted: " << word << endl;
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@Nikki365
Doesn't your map string need an 'x' in it, between the 'y' and 'w'?
Pull some ideas out of this, perhaps.
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#include <iostream>
#include <string>
using std::string;
using std::cout;
using std::cin;
int main()
{
const string cipher("zyxwvutsrqponmlkjihgfedcba");
string userInput;
cout << "Enter word: ";
cin >> userInput;
for (const auto & letter: userInput)
{
cout << cipher[toupper(letter) - 65];
}
cout << '\n';
}
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http://www.ascii-code.com/
http://www.cplusplus.com/reference/cctype/toupper/
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