Question

Hi I need help with c++ (Caesar Cipher)...Urgent

http://cpp.sh/62bjg

when source is "a" and c is 1 it gives me a symbol '{' whereas if I change line 70 to source[i]-- it works, the code is working for decrement but not increment!!!

Answer 1

It doesn't totally work for decrement as well,

the input abc yields yab.

Thats because the loop `for (int j = 0; j < 26; j++)` does not get `break` when the source is decremented.

So, at first when source is 'a', it becomes 'z' and then this j loop continues and decrements the source making it 'y'.

Can you think of a way to break that loop when source is modified even once?

Answer 2

used 'continue' and 'break' to achieve that here:
http://cpp.sh/6zbx6
let me know if you still have doubts :)

Answer 3

Thx man...you are superb....First I did not know why the loop was not working...Then I tried the 'break' statement as you suggested but obviously it was working only for alphabet 'a'....if alphabet 'b' to increment the break statement would break the loop....then u suggested to use 'continue'...Your reply was really helpful...Thx again...

Answer 4

welcome ^_^

Answer 5

whats the problem?