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- #include<iostream>
- using namespace std;
- int main ()
- {
- int numer;
- string szyfr;
- cin>>szyfr;
- int klucz;
- cin>>klucz;
- string s;
- cin.ignore();
- getline(cin,s);
- int dlugosc=s.size();
- if(szyfr=="szyfruj")
- {
- for(int i=0;i<dlugosc;i++)
- {
- numer=s[i];
- if(s[i]>='a' && s[i]<='z') numer-=97;
- if(s[i]>='A' && s[i]<='Z') numer-=65;
- numer=numer+klucz;
- numer=numer%26;
- if(s[i]>='a' && s[i]<='z') numer+=97;
- if(s[i]>='A' && s[i]<='Z') numer+=65;
- s[i]=numer;
- }
- }
- if(szyfr=="odszyfruj")
- {
- for(int i=0;i<dlugosc;i++)
- {
- numer=s[i];
- if(s[i]>='a' && s[i]<='z') numer-=97;
- if(s[i]>='A' && s[i]<='Z') numer-=65;
- numer=numer-klucz;
- if(numer<0)numer=numer+26;
- if(s[i]>='a' && s[i]<='z') numer+=97;
- if(s[i]>='A' && s[i]<='Z') numer+=65;
- s[i]=numer;
- }
- }
- cout<<s;
- }
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