Keypad codes am getting unexpected output

#1

my code
https://ide.codingblocks.com/s/40816

question link
https://hack.codingblocks.com/contests/c/512/96

please correct the code and explain a litlte about my mistake

#2

You must be getting runerror as you are not returning anything from the recursive function .
So , concept is pretty easy . In every recursive call iterate on current string of table[ ] and save the present character and call on the next recursion .
I have written the function for printing output strings .You can take a look on it !

void rec(string s, int i , string out){
if(!s[i]){ print s ; return}
int index=s[i]-‘0’;
for(int k=0;table[index][k];k++)
rec(s,I+1,out+table[index][k]);
}

#3

please simply comment and correct my code on a new ide
and cause am having a hard time understand this
and to implement what u have written in my code

#4

please reply …

#5

OKay, I have commented the above code , you can check it out
https://ide.codingblocks.com/s/40966