Question

Can anyone help me to solve this problem? Thanks in advance

Assignment 6 Strings Write a program which makes Caesar encryption. Caesar encryption is based on circular shifting of the letters with a given amount. Your program will encrypt the input and it will shift the letters by the given amount (if it passes z, it will continue from a), it will not change spaces (" "). You can assume that no other characters will be entered.

Answer 1

Code in C++:

#include<iostream>
using namespace std;
int main(){
    char str[100];
    cout<<"Enter the sentence:";
    cin.getline(str,100);
    int n,length;
    cout<<"Enter number:";
    cin >> n ;
    length=strlen(str);
    int temp,i;
    char ch;
    for(i=0;i<length;i++){
        if(str[i]==' ')
             continue;
        ch=str[i];
        temp=(int)(ch);
        temp=temp+n;
        if(temp>122){
            temp=temp-122;
            temp=temp+96;
            ch=(char)(temp);
            str[i]=ch;
        }
        else if(temp<97){
            temp=97-temp;
            temp=123-temp;
            ch=(char)(temp);
            str[i]=ch;
        }
        else{
            ch=(char)(temp);
            str[i]=ch;
        }
    }
    cout<<"After encryption:"<<endl;
    cout<<str;
}

Output:

CppDroid terminal Stopped Enter the sentence:little quick brown fox j umped over the lazy dog Enter number:4 After encryption: pmxxpi uymgo fvsar jsb nyqtih sziv xli pedc hsk Remove ad banner Get premium!