Smart keypad advanced

#1

Im not able to understand the question as well as explanation

#2

@rastogi.g1998
as u did in smart-keypad 1 question
u create all the possible keypad recursion and then u store them in a vector ( lets name this : vec)

then what u do is iterate over the

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array and see which all string have substring included in vec

for eg:
34 will form combination

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so now which all string from searchIn contain these substring

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#3

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