Smart Keypad 1 https://ide.codingblocks.com/s/167288

#1

I’m getting run error

#2

u r just doing for 2 length input

what for the input whose length greater than 2?
e.g
input: 5608
o/p :

jm t
jm u
jm v
jn t
jn u
jn v
jo t
jo u
jo v
km t
km u
km v
kn t
kn u
kn v
ko t
ko u
ko v
lm t
lm u
lm v
ln t
ln u
ln v
lo t
lo u
lo v

hope this wll help u
pls rate my work so that i can improve myself

#3

Okkk, can u give me a hint as to how to approach this question… I have no idea

#4

approach is similar to generating the subsequence of string.

e.g: 123

take the first char : 1
and make a call for the rest of the string : 23
then generate all the possible string by merging the chars which are present on keypad 1(first char) with the strings generated by rest string 23.

hope this will help u
pls rate my work so that i can improve myself.

#5

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#6
#7

@Shlok,

https://ide.codingblocks.com/s/233571 corrected code.

Approach:

See imagine the old nokia-samsung phones which had buttons. 1-abc, 2-def and so on.
Similarly in this question, you are given the string table[] = { " ", “.+@$”, “abc”, “def”, “ghi”, “jkl” , “mno”, “pqrs” , “tuv”, “wxyz” };

where string corresponding to 0 is " " and 1 is “.+@$” and 2 is “abc”.

Now if input is 12. Means you pressed buttons 1 and 2 what are the possible combinations you can make:

1 has .+@$
2 has abc

So all the possible combinations will be:
.a
.b
.c
+a
+b
+c
@a
@b
@c
$a
$b
$c
Note:We only need to print all the possible combinations arising if we press buttons given in the input string.