Hey! What if i want the complete set of elements?

#1

Here, In the string tokenizer function. He had a while loop working. How does that work corresponding to the input given? Also, What if at key 2, I need 20 ,30, and so on. Not Only 20.?

#2

@JaveedYara are you taking about this

string extract_string_at_key(string str,int key)
{
    char *s;
    s=strtok((char*)str.c_str()," ");
    while(key>1)
    {
        s=strtok(NULL," ");
        key--;
    }
    return (string)s;
}

here we are extracting tokens k times
if k==1 we don’t go into loop and return the s which we get from strtok
if k==2 we go inside loop and call strtok which gives us 2nd token and then we decrease k
and so on

#3

so Let’s say the Key is 3. it gives us the value of 3rd keh and then it should give out the value of 2nd key right?

#4

no
if key=3 we have to extract 3rd key
and it will also extract 3rd key